Files
nexus/sreweekly/articles/381/04-cdn-observability.html
2026-09-12 17:23:01 +08:00

2891 lines
130 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="Discover the importance of CDN observability for monitoring your extended infrastructure. Learn about the benefits and needs.">
<meta name="keywords" content="Content delivery network, Domain Name System, Observability, Performance Monitor">
<meta property="og:description" content="Discover the importance of CDN observability for monitoring your extended infrastructure. Learn about the benefits and needs.">
<meta property="og:site_name" content="dzone.com">
<meta property="og:title" content="CDN Observability">
<meta property="og:url" content="https://dzone.com/articles/cdn-observability-why-you-must-monitor-your-extend">
<meta property="og:image" content="https://dz2cdn1.dzone.com/storage/article-thumb/17063168-thumb.jpg">
<meta property="og:type" content="article">
<meta name="twitter:site" content="@DZoneInc">
<meta name="twitter:image" content="https://dz2cdn1.dzone.com/storage/article-thumb/17063168-thumb.jpg">
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:description" content="Discover the importance of CDN observability for monitoring your extended infrastructure. Learn about the benefits and needs.">
<meta name="twitter:title" content="CDN Observability">
<meta name="referrer" content="origin-when-cross-origin">
<meta name="google-site-verification" content="kndbhxcupfEqWmZclhCpB6vlgOs7QSmx2UHAGGnP2mA">
<meta name="df-verify" content="df0d76632b4543">
<link rel="icon" type="image/x-icon" href="https://dz2cdn1.dzone.com/themes/dz20/images/favicon.png">
<link rel="image_src" href="https://dz2cdn1.dzone.com/storage/article-thumb/17063168-thumb.jpg">
<link rel="canonical" href="https://dzone.com/articles/cdn-observability-why-you-must-monitor-your-extend">
<title>CDN Observability</title>
<link rel="preload" href="https://dz2cdn1.dzone.com/themes/dz20/font/fontello.woff?11773374" as="font" type="font/woff" crossorigin="anonymous">
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/icons.css">
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/lib/static/bootstrap/bootstrap.min.css">
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/article/global.css">
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/header-updated/styles.css">
<style>
:root {
--xs-size: 2px;
--sm-size: 5px;
--md-size: 10px;
--lg-size: 15px;
--xl-size: 25px;
--sm-border-size: 8px;
--sm-font-size: 13px;
--sm-plus-font-size: 16px;
--md-font-size: 18px;
--lg-font-size: 22px;
--xl-font-size: 26px;
}
/* Display Quick-Access Classes */
.display-none { display: none; }
.display-block { display: block; }
.display-inline { display: inline; }
.display-inline-block { display: inline-block; }
/* Margin Quick-Access Classes */
.m-xs { margin: var(--xs-size); }
.m-sm { margin: var(--sm-size); }
.m-md { margin: var(--md-size); }
.m-lg { margin: var(--lg-size); }
.m-xl { margin: var(--xl-size); }
.mt-xs, .my-xs { margin-top: var(--xs-size); }
.mr-xs, .mx-xs { margin-right: var(--xs-size); }
.mb-xs, .my-xs { margin-bottom: var(--xs-size); }
.ml-xs, .mx-xs { margin-left: var(--xs-size); }
.mt-sm, .my-sm { margin-top: var(--sm-size); }
.mr-sm, .mx-sm { margin-right: var(--sm-size); }
.mb-sm, .my-sm { margin-bottom: var(--sm-size); }
.ml-sm, .mx-sm { margin-left: var(--sm-size); }
.mt-md, .my-md { margin-top: var(--md-size); }
.mr-md, .mx-md { margin-right: var(--md-size); }
.mb-md, .my-md { margin-bottom: var(--md-size); }
.ml-md, .mx-md { margin-left: var(--md-size); }
.mt-lg, .my-lg { margin-top: var(--lg-size); }
.mr-lg, .mx-lg { margin-right: var(--lg-size); }
.mb-lg, .my-lg { margin-bottom: var(--lg-size); }
.ml-lg, .mx-lg { margin-left: var(--lg-size); }
.mt-xl, .my-xl { margin-top: var(--xl-size); }
.mr-xl, .mx-xl { margin-right: var(--xl-size); }
.mb-xl, .my-xl { margin-bottom: var(--xl-size); }
.ml-xl, .mx-xl { margin-left: var(--xl-size); }
.ml-auto, .mx-auto { margin-left: auto; }
.mr-auto, .mx-auto { margin-right: auto; }
.mt-auto, .my-auto { margin-top: auto; }
.mb-auto, .my-auto { margin-bottom: auto; }
.my-none, .mt-none { margin-top: 0 !important; }
.mx-none, .mr-none { margin-right: 0 !important; }
.my-none, .mb-none { margin-bottom: 0 !important; }
.mx-none, .ml-none { margin-left: 0 !important; }
/* Padding Quick-Access Classes */
.p-xs { padding: var(--xs-size); }
.p-sm { padding: var(--sm-size); }
.p-md { padding: var(--md-size); }
.p-lg { padding: var(--lg-size); }
.p-xl { padding: var(--xl-size); }
.pt-xs, .py-xs { padding-top: var(--xs-size); }
.pr-xs, .px-xs { padding-right: var(--xs-size); }
.pb-xs, .py-xs { padding-bottom: var(--xs-size); }
.pl-xs, .px-xs { padding-left: var(--xs-size); }
.pt-sm, .py-sm { padding-top: var(--sm-size); }
.pr-sm, .px-sm { padding-right: var(--sm-size); }
.pb-sm, .py-sm { padding-bottom: var(--sm-size); }
.pl-sm, .px-sm { padding-left: var(--sm-size); }
.pt-md, .py-md { padding-top: var(--md-size); }
.pr-md, .px-md { padding-right: var(--md-size); }
.pb-md, .py-md { padding-bottom: var(--md-size); }
.pl-md, .px-md { padding-left: var(--md-size); }
.pt-lg, .py-lg { padding-top: var(--lg-size); }
.pr-lg, .px-lg { padding-right: var(--lg-size); }
.pb-lg, .py-lg { padding-bottom: var(--lg-size); }
.pl-lg, .px-lg { padding-left: var(--lg-size); }
.pt-xl, .py-xl { padding-top: var(--xl-size); }
.pr-xl, .px-xl { padding-right: var(--xl-size); }
.pb-xl, .py-xl { padding-bottom: var(--xl-size); }
.pl-xl, .px-xl { padding-left: var(--xl-size); }
.py-none, .pt-none { padding-top: 0 !important; }
.px-none, .pr-none { padding-right: 0 !important; }
.py-none, .pb-none { padding-bottom: 0 !important; }
.px-none, .pl-none { padding-left: 0 !important; }
/* Flex Quick-Access Classes */
.flex {
display: flex;
}
.flex-column {
display: flex;
flex-direction: column;
}
.flex-column-reverse {
display: flex;
flex-direction: column-reverse;
}
.flex-row {
display: flex;
flex-direction: row;
}
.flex-row-reverse {
display: flex;
flex-direction: row-reverse;
}
.flex-wrap {
flex-wrap: wrap;
}
.flex-grow {
flex-grow: 1;
}
.align-center { align-items: center; }
.align-end { align-items: flex-end; }
.content-center {
align-content: center;
}
.justify-center { justify-content: center; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.justify-around { justify-content: space-around; }
.justify-between { justify-content: space-between; }
.justify-evenly { justify-content: space-evenly; }
.gap-sm { gap: var(--sm-size); }
.gap-md { gap: var(--md-size); }
.gap-lg { gap: var(--lg-size); }
.gap-xl { gap: var(--xl-size); }
/* Display Quick-Access Classes */
.inline-block { display: inline-block; }
/* Font Quick-Access Classes */
.font-xl { font-size: var(--xl-font-size); }
.font-lg { font-size: var(--lg-font-size); }
.font-md { font-size: var(--md-font-size); }
.font-sm-plus { font-size: var(--sm-plus-font-size); }
.font-sm { font-size: var(--sm-font-size); }
.font-strike { text-decoration: line-through; }
.font-underline { text-decoration: underline; }
.font-overline { text-decoration: overline; }
.font-italic { font-style: italic; }
.font-bold { font-weight: bold; }
.font-black { color: #000000; }
.font-white { color: #ffffff; }
.font-gray { color: var(--brand-gray-text); }
.font-danger { color: var(--header-dropdown-button-bg-danger); }
.font-center { text-align: center; }
.no-wrap { white-space: nowrap; }
/* Consistent headings between h and non-h tags */
.heading {
margin-top: 0;
margin-bottom: var(--md-size);
}
.heading.font-xl { line-height: var(--xl-font-size); }
.heading.font-lg { line-height: var(--lg-font-size); }
.heading.font-md { line-height: var(--md-font-size); }
.heading.font-sm-plus { line-height: var(--sm-plus-font-size); }
.heading.font-sm { line-height: var(--sm-font-size); }
/* Font Clamp Quick-Access Classes */
.line-clamp,
.line-clamp-2,
.line-clamp-3,
.line-clamp-4,
.line-clamp-5 {
display: -webkit-box;
-webkit-line-clamp: 4;
-webkit-box-orient: vertical;
overflow: hidden;
text-overflow: ellipsis;
}
.line-clamp-2 { -webkit-line-clamp: 2 !important; }
.line-clamp-3 { -webkit-line-clamp: 3 !important; }
.line-clamp-4 { -webkit-line-clamp: 4 !important; }
.line-clamp-5 { -webkit-line-clamp: 5 !important; }
/* User-Select Quick-Access Classes */
.select-none { user-select: none; }
/* Position Quick-Access Classes */
.absolute { position: absolute; }
.relative { position: relative; }
.float-left { float: left; }
.float-right { float: right; }
.pos-top { top: 0; }
.pos-right { right: 0; }
.pos-bottom { bottom: 0; }
.pos-left { left: 0; }
.va-top { vertical-align: top; }
.va-middle { vertical-align: middle; }
.va-bottom { vertical-align: bottom; }
/* Transition Quick-Access Classes */
.trans-linear-quick {
transition: all 0.15s linear;
}
/* Background Quick-Access Classes */
.bg-gray { background: #cccccc; }
.bg-white { background-color: white; }
.bg-none { background: none; }
/* Border Quick-Access Classes */
.border-gray { border: 1px solid #cccccc; }
.tab-pane.border-gray { border: 1px solid #ddd; }
.no-border, .border-none { border: none !important; }
.bt-none { border-top: none !important; }
.br-none { border-right: none !important; }
.bb-none { border-bottom: none !important; }
.bl-none { border-left: none !important; }
/* Border Radius Quick-Access Classes */
.round-t-sm, .round-tl-sm { border-top-left-radius: var(--sm-border-size); }
.round-t-sm, .round-tr-sm { border-top-right-radius: var(--sm-border-size); }
.round-b-sm, .round-bl-sm { border-bottom-left-radius: var(--sm-border-size); }
.round-b-sm, .round-br-sm { border-bottom-right-radius: var(--sm-border-size); }
.round-sm { border-radius: var(--sm-border-size); }
.round-fully { border-radius: 50%; }
/* Misc Quick-Access Classes */
.haikei {
position: relative;
background-image: url('https://dz2cdn1.dzone.com/themes/dz20/images/polygon-scatter-haikei-shapes.svg');
background-repeat: no-repeat;
background-size: cover;
}
.haikei:before {
content: '';
position:absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: var(--color-event-background);
z-index: -1;
}
.margin-auto-center {
display: block;
margin-left: auto;
margin-right: auto;
}
.flex-auto-center {
display: flex;
margin-left: auto;
margin-right: auto;
}
.mw-1100 { max-width: 1100px; }
.mw-1300 { max-width: 1300px; }
.full-width { width: 100%; }
.h-separator {
background-color: #cccccc;
height: 1px;
width: 100%;
margin: 5px auto;
}
.no-spacing {
margin: 0 !important;
padding: 0 !important;
}
.inherit-color { color: inherit; }
.inherit-decoration { text-decoration: inherit; }
/* Table Quick-Access Classes */
.table-border-gray tr:not(:last-child) {
border-bottom: 1px solid #cccccc;
}
table.full-width tr td:last-child {
width:100%;
}
/* Animation Quick-Access Classes */
@keyframes anim-spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(359deg); }
}
.anim-spin {
display: inline-block;
animation: anim-spin 2s infinite linear;
}
.hov-pointer { cursor: pointer; }
.hov-brighten:hover { filter: brightness(1.2); }
.hov-darken:hover { filter: brightness(0.95); }
.hov-underline:hover { text-decoration: underline; }
/* Small tweaks related to components when using these styles */
.nav-tabs {
border-bottom: none;
}
.tab-content > .flex-column.active,
.tab-content > .flex-row.active {
display: flex;
}
/* Alpine components with x-cloak should not be visible by default until conditionals kick in */
[x-cloak] { display: none !important; }
</style>
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/alpine-components/modal.css">
<script defer src="https://dz2cdn1.dzone.com/themes/dz20/lib/alpinejs/3.13.2/cdn.min.js"></script>
<script>
document.addEventListener('alpine:init', () => {
Alpine.store('article', {
id: null,
engagement: {
open: false,
page: 1,
users: [],
additional: true,
loading: false,
initializing: false,
unauthorized: false,
enqueued: null,
dequeued: null,
reset() {
this.open = false;
this.page = 1;
this.users.splice(0);
this.additional = true;
this.loading = false;
this.initializing = false;
this.enqueued = null;
this.dequeued = null;
},
enqueue(user) {
this.dequeued = null;
this.enqueued = user;
},
dequeue(user) {
this.enqueued = null;
this.dequeued = user;
},
add(user) {
this.users.push(user);
this.enqueued = null;
},
remove(user) {
const index = this.users.findIndex(u => u.id === user.id);
if (index !== -1) {
this.users.splice(index, 1);
}
this.dequeued = null;
},
contains(user) {
return this.users.filter(u => u.id === user.id).length;
}
}
});
Alpine.effect(() => {
const store = Alpine.store('article');
if (!store.engagement.additional && store.engagement.enqueued) {
if (!store.engagement.contains(store.engagement.enqueued)) {
store.engagement.add(store.engagement.enqueued);
}
}
});
Alpine.effect(() => {
const store = Alpine.store('article');
if (store.engagement.page && store.engagement.dequeued) {
store.engagement.remove(store.engagement.dequeued);
}
})
});
</script></head>
<body x-data>
<div class="skybox skybox-closeBtn dz_skybox" data-gpt-slot="skybox" id="div-gpt-ad-1435246566686-99"></div>
<header id="ftl-header">
<div class="header-top">
<div class="header-container">
<div class="pull-left logo-container">
<div class="logo">
<a class="inner" href="/">
<picture>
<source srcset="https://dz2cdn1.dzone.com/themes/dz20/images/dz_logo_2021_cropped.webp" type="image/webp">
<source srcset="https://dz2cdn1.dzone.com/themes/dz20/images/dz_logo_2021_cropped.png" type="image/png">
<img src="https://dz2cdn1.dzone.com/themes/dz20/images/dz_logo_2021_cropped.png" width="181" height="56" alt="DZone">
</picture>
</a>
</div>
</div>
<div class="pull-right login-and-search">
<div id="authenticated-block" class="logged-in">
<div class="welcome-back">Thanks for visiting DZone today,</div>
<div id="user-header" class="user-info">
<button class="user-avatar">
<span id="header-username" class="username"></span>
<img id="header-avatar" src="" alt="user avatar">
</button>
<div id="user-dropdown" class="browse-user-menu">
<div class="user-content">
<a id="header-user-plug" href="#" class="user-description"></a>
<a id="header-user-edit" href="#" class="edit-profile">Edit Profile</a>
</div>
<ul class="user-actions">
<li id="first-user-action">
<a id="header-dropdown-manage-email" href="#">Manage Email Subscriptions</a>
</li>
<li>
<a href="/articles/how-to-submit-a-post-to-dzone?utm_source=DZone&utm_medium=user_dropdown&utm_campaign=how_to_post">
How to Post to DZone
</a>
</li>
<li>
<a href="/articles/dzones-article-submission-guidelines">
Article Submission Guidelines
</a>
</li>
</ul>
<div class="bottom">
<a href="/users/logout.html" class="sign-out">Sign Out</a>
<a id="dropdown-view-profile" href="#" class="view-profile">View Profile</a>
</div>
</div>
</div>
<div class="post-content">
<button id="post-button" class="post-content--button">
<span class="post-class">Post</span>
<i class="icon-plus"></i>
</button>
<div id="post-menu" class="posting-links">
<div class="posting-links-menu">
<ul>
<li>
<img src="https://dz2cdn1.dzone.com/themes/dz20/images/dz-postarticle.svg" width="15" height="18" style="width: 15px; height: 18px;">
<a href="/content/article/post.html">Post an Article</a>
</li>
<li>
<a id="drafts-link" href="#">Manage My Drafts</a>
</li>
</ul>
</div>
</div>
</div>
</div>
<div id="unauthenticated-block">
<div class="dz-intro">Over 2 million developers have joined DZone.</div>
<div class="mobile-invisible sign-in-join">
<a href="/users/login.html">Log In</a>
<span class="dz-intro-span">/</span>
<a href="/static/registration.html">Join</a>
</div>
<a class="join-icon" href="/users/login.html" aria-label="User">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide svg-user lucide-user-icon lucide-user">
<path d="M19 21v-2a4 4 0 0 0-4-4H9a4 4 0 0 0-4 4v2"></path>
<circle cx="12" cy="7" r="4"></circle>
</svg>
</a>
</div>
<script>
document.addEventListener('alpine:init', () => {
Alpine.data('searchDrawer', () => ({
open: false,
query: '',
minCharsMet: false,
toggleVisibility() {
this.open = !this.open;
if (this.open) {
this.$nextTick(() => {
this.$refs.query.focus();
});
}
},
updateSearchValue() {
if (!this.query || !this.query.length || this.query.length < 3) {
this.minCharsMet = false;
return;
}
this.minCharsMet = true;
localStorage.setItem('ls.searchValue', this.query);
},
searchSite() {
if (this.minCharsMet) {
window.location = '/search';
}
}
}));
});
</script>
<div class="headerSearch" x-data="searchDrawer()" x-cloak>
<button class="btn-search dropdown-toggle" x-on:click="toggleVisibility()" aria-label="Search">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide svg-search lucide-search-icon lucide-search">
<path d="m21 21-4.34-4.34"></path>
<circle cx="11" cy="11" r="8"></circle>
</svg>
</button>
<template x-teleport=".header-container">
<div id="search-drawer" x-show="open" x-on:click.outside="open = false" x-transition>
<div class="search-input">
<input type="text"
placeholder="Search"
autofocus="autofocus"
x-model="query"
x-ref="query"
x-on:input.change="updateSearchValue()"
x-on:keyup.enter="searchSite()"
>
<button x-on:click="searchSite()" x-bind:disabled="!minCharsMet">
<span>Search</span>
</button>
</div>
<div class="search-footer">
Please enter at least three characters to search
</div>
</div>
</template>
</div>
</div>
</div> </div>
<div class="header-bottom">
<div class="header-bottom-container">
<a class="resource-link" href="/refcardz">Refcards</a>
<a class="resource-link" href="/trendreports">Trend Reports</a>
<div class="resource-link link-menu">
<a href="/events">Events</a>
<a href="/events/video-library">Video Library</a>
</div>
</div>
</div>
<nav class="header-menu-bar">
<div class="header-menu resource-category">
<a href="/refcardz">Refcards</a>
</div>
<div class="header-menu-separator resource-category-separator"></div>
<div class="header-menu resource-category">
<a href="/trendreports">Trend Reports</a>
</div>
<div class="header-menu-separator resource-category-separator"></div>
<div class="header-menu resource-category no-bottom-radius" data-click-activation>
<p class="menu-label">Events</p>
<div class="header-menu-items">
<div class="header-menu-columns">
<a class="header-menu-item" href="/events">View Events</a>
<a class="header-menu-item" href="/events/video-library">Video Library</a>
</div>
</div>
</div>
<div class="header-menu zone-menu" data-click-activation>
<p class="menu-label">Zones <i class="icon-down-dir icon-closed"></i><i class="icon-right-dir icon-open"></i></p>
<div class="header-menu-items">
<div class="header-menu-columns">
<div class="header-menu-column-item">
<a class="header-menu-item" href="/culture-and-methodologies">Culture and Methodologies</a>
<a class="header-menu-item" href="/agile">Agile</a>
<a class="header-menu-item" href="/career-development">Career Development</a>
<a class="header-menu-item" href="/methodologies">Methodologies</a>
<a class="header-menu-item" href="/team-management">Team Management</a>
</div>
<div class="header-menu-column-item">
<a class="header-menu-item" href="/data-engineering">Data Engineering</a>
<a class="header-menu-item" href="/ai-ml">AI/ML</a>
<a class="header-menu-item" href="/big-data">Big Data</a>
<a class="header-menu-item" href="/data">Data</a>
<a class="header-menu-item" href="/databases">Databases</a>
<a class="header-menu-item" href="/iot">IoT</a>
</div>
<div class="header-menu-column-item">
<a class="header-menu-item" href="/software-design-and-architecture">Software Design and Architecture</a>
<a class="header-menu-item" href="/cloud-architecture">Cloud Architecture</a>
<a class="header-menu-item" href="/containers">Containers</a>
<a class="header-menu-item" href="/integration">Integration</a>
<a class="header-menu-item" href="/microservices">Microservices</a>
<a class="header-menu-item" href="/performance">Performance</a>
<a class="header-menu-item" href="/security">Security</a>
</div>
<div class="header-menu-column-item">
<a class="header-menu-item" href="/coding">Coding</a>
<a class="header-menu-item" href="/frameworks">Frameworks</a>
<a class="header-menu-item" href="/java">Java</a>
<a class="header-menu-item" href="/javascript">JavaScript</a>
<a class="header-menu-item" href="/languages">Languages</a>
<a class="header-menu-item" href="/tools">Tools</a>
</div>
<div class="header-menu-column-item">
<a class="header-menu-item" href="/testing-deployment-and-maintenance">Testing, Deployment, and Maintenance</a>
<a class="header-menu-item" href="/deployment">Deployment</a>
<a class="header-menu-item" href="/devops-and-cicd">DevOps and CI/CD</a>
<a class="header-menu-item" href="/maintenance">Maintenance</a>
<a class="header-menu-item" href="/monitoring-and-observability">Monitoring and Observability</a>
<a class="header-menu-item" href="/testing-tools-and-frameworks">Testing, Tools, and Frameworks</a>
</div>
<div class="header-menu-column-item sponsored">
<a class="header-menu-item" href="javascript:void(0)">Partner Zones</a>
<a class="header-menu-item" href="/hubs/build-ai-agents-that-are-ready-for-production/">Build AI Agents That Are Ready for Production</a>
</div>
</div>
</div>
</div>
<div class="header-menu parent-category" tabindex="1">
<a href="/culture-and-methodologies">Culture and Methodologies</a>
<div class="header-menu-items">
<a class="header-menu-item" href="/agile">Agile</a>
<a class="header-menu-item" href="/career-development">Career Development</a>
<a class="header-menu-item" href="/methodologies">Methodologies</a>
<a class="header-menu-item" href="/team-management">Team Management</a>
</div>
</div>
<div class="header-menu-separator parent-category-separator"></div>
<div class="header-menu parent-category" tabindex="2">
<a href="/data-engineering">Data Engineering</a>
<div class="header-menu-items">
<a class="header-menu-item" href="/ai-ml">AI/ML</a>
<a class="header-menu-item" href="/big-data">Big Data</a>
<a class="header-menu-item" href="/data">Data</a>
<a class="header-menu-item" href="/databases">Databases</a>
<a class="header-menu-item" href="/iot">IoT</a>
</div>
</div>
<div class="header-menu-separator parent-category-separator"></div>
<div class="header-menu parent-category" tabindex="3">
<a href="/software-design-and-architecture">Software Design and Architecture</a>
<div class="header-menu-items">
<a class="header-menu-item" href="/cloud-architecture">Cloud Architecture</a>
<a class="header-menu-item" href="/containers">Containers</a>
<a class="header-menu-item" href="/integration">Integration</a>
<a class="header-menu-item" href="/microservices">Microservices</a>
<a class="header-menu-item" href="/performance">Performance</a>
<a class="header-menu-item" href="/security">Security</a>
</div>
</div>
<div class="header-menu-separator parent-category-separator"></div>
<div class="header-menu parent-category" tabindex="4">
<a href="/coding">Coding</a>
<div class="header-menu-items">
<a class="header-menu-item" href="/frameworks">Frameworks</a>
<a class="header-menu-item" href="/java">Java</a>
<a class="header-menu-item" href="/javascript">JavaScript</a>
<a class="header-menu-item" href="/languages">Languages</a>
<a class="header-menu-item" href="/tools">Tools</a>
</div>
</div>
<div class="header-menu-separator parent-category-separator"></div>
<div class="header-menu parent-category" tabindex="5">
<a href="/testing-deployment-and-maintenance">Testing, Deployment, and Maintenance</a>
<div class="header-menu-items">
<a class="header-menu-item" href="/deployment">Deployment</a>
<a class="header-menu-item" href="/devops-and-cicd">DevOps and CI/CD</a>
<a class="header-menu-item" href="/maintenance">Maintenance</a>
<a class="header-menu-item" href="/monitoring-and-observability">Monitoring and Observability</a>
<a class="header-menu-item" href="/testing-tools-and-frameworks">Testing, Tools, and Frameworks</a>
</div>
</div>
<div class="header-menu-separator parent-category-separator"></div>
<div class="header-menu parent-category sponsored" tabindex="6">
<a href="javascript:void(0)">Partner Zones</a>
<div class="header-menu-items sponsored">
<a class="header-menu-item" href="/hubs/build-ai-agents-that-are-ready-for-production/">Build AI Agents That Are Ready for Production</a>
</div>
</div>
<div class="header-menu-separator parent-category-separator"></div>
</nav>
</header>
<script>
const csrf = {
parameter: 'TH_CSRF',
header: 'X-TH-CSRF',
token: '955594133026236366'
}; // set csrf for auth-status script
</script>
<script>
addEventListener('DOMContentLoaded', function() {
handleRedirects();
handleMenus();
handleMobileMenuHeights();
handleGotoLinks();
});
function isHidden(element) {
try {
return window.getComputedStyle(element).display === 'none';
} catch (_) {
return false;
}
}
function getLink(element) {
if (element.hasAttribute('data-goto')) {
return element.getAttribute('data-goto');
}
return element.href;
}
function isLeftClick(event) {
if (event.altKey || event.shiftKey) {
return false;
} else if ('buttons' in event || 'which' in event) {
return event.buttons === 1 || event.which === 1;
} else {
return (event.button === 1 || (event.type === 'click'));
}
}
function handleRedirects() {
const redirections = [...document.querySelectorAll('[data-activate-menu]'), ...document.querySelectorAll('[data-click-target]')];
redirections.forEach(function(element) {
const menuSelector = element.getAttribute('data-activate-menu') || element.getAttribute('data-click-target');
const redirectingElement = document.querySelector(menuSelector);
if (redirectingElement) {
element.style.cursor = 'pointer';
const redirect = function(e) {
if (redirectingElement.hasAttribute('href') || redirectingElement.hasAttribute('data-goto')) {
if (redirectingElement.hasAttribute('data-new-window') || e.ctrlKey || e.metaKey) {
window.open(getLink(redirectingElement), '_blank');
} else {
window.open(getLink(redirectingElement), '_self');
}
} else {
const evt = new e.constructor(e.type, e);
redirectingElement.dispatchEvent(evt);
}
};
element.addEventListener('mouseup', redirect);
element.addEventListener('mousedown', (e) => e.preventDefault());
element.addEventListener('click', (e) => e.preventDefault());
}
});
}
function handleMenus() {
const menuElements = [
...document.querySelectorAll('.header-menu > a'),
...document.querySelectorAll('.header-menu > p.menu-label')
];
let scrollYMemory = -1;
function scrollToMemory() {
if (scrollYMemory !== -1) {
setTimeout(function() {
window.scrollTo(0, scrollYMemory);
scrollYMemory = -1;
}, 10);
}
}
function hideMenus() {
// unfocus menus & items, and set the menus to non-visible.
menuElements.forEach(function (element) {
element.blur();
element.parentElement.blur();
element.parentElement.classList.remove('menu-opened');
const menuItems = element.parentElement.querySelector('.header-menu-items');
if (menuItems) {
menuItems.style.display = 'none';
}
});
const wasHidden = document.body.style.overflowY === 'hidden';
document.body.style.overflowY = 'auto';
if (wasHidden) {
scrollToMemory();
}
}
function isEventOutsideMenu(e) {
return e.target.closest && !e.target.closest('.header-menu') && !e.target.closest('[data-activate-menu]');
}
// Handle mobile menu toggling
menuElements.forEach(function(element) {
const menu = element.parentElement;
const headerItems = menu.querySelector('.header-menu-items');
const menuEntries = headerItems ? headerItems.querySelectorAll('.header-menu-item') : [];
const focus = function() {
menu.focus();
menu.classList.add('menu-opened');
if (headerItems) {
headerItems.style.display = 'block';
}
if (menu.classList.contains('zone-menu')) {
scrollYMemory = window.scrollY;
document.body.style.overflowY = 'hidden';
} else {
scrollYMemory = -1;
}
};
const unfocus = function() {
menu.blur();
menu.classList.remove('menu-opened');
if (headerItems) {
headerItems.style.display = 'none';
}
const wasHidden = document.body.style.overflowY === 'hidden';
document.body.style.overflowY = 'auto';
if (wasHidden) {
scrollToMemory();
}
};
const toggleMenuVisibility = function(e) {
if ((e.type === 'click' || e.type === 'mouseup') && !isLeftClick(e)) {
e.preventDefault();
return;
}
const hidden = isHidden(headerItems);
if (menu.hasAttribute('data-click-activation')) { // handle click activated toggling
if (hidden) {
hideMenus(); // hide other open menus first
focus();
} else {
unfocus();
}
e.preventDefault();
} else if (hidden) {
hideMenus(); // hide other open menus first
focus();
e.preventDefault(); // prevent 'click' event from firing when menu is hidden
}
};
element.addEventListener('touchend', toggleMenuVisibility);
element.addEventListener('mouseup', toggleMenuVisibility);
// Add hover events to non-click-activated menus, even though CSS should cover it.
if (!menu.hasAttribute('data-click-activation')) {
menu.addEventListener('mouseover', function () {
hideMenus(); // hide other open menus first
focus();
});
menu.addEventListener('mouseout', function (e) {
if (isEventOutsideMenu(e)) {
unfocus();
}
});
}
// Hide menu when child is clicked
menuEntries.forEach(function(menuEntry) {
const linkToItem = function(e) {
if (e.type === 'mousedown' || e.type === 'click') {
e.preventDefault();
return;
}
if (e.type === 'mouseup' && !isLeftClick(e)) {
e.preventDefault();
return;
}
window.open(getLink(menuEntry), (e.ctrlKey || e.metaKey) ? '_blank' : (menuEntry.target || '_self'));
unfocus();
e.preventDefault();
};
const linkToMobileItem = function(e) {
if (e.type === 'touchstart') {
menuEntry.setAttribute('data-touchmove', false);
} else if (e.type === 'touchmove') {
menuEntry.setAttribute('data-touchmove', true);
} else if (e.type === 'touchend' && (!menuEntry.hasAttribute('data-touchmove') || menuEntry.getAttribute('data-touchmove').toLowerCase() === 'false')) {
window.open(getLink(menuEntry), (e.ctrlKey || e.metaKey) ? '_blank' : (menuEntry.target || '_self'));
unfocus();
e.preventDefault();
}
};
menuEntry.addEventListener('mousedown', linkToItem);
menuEntry.addEventListener('mouseup', linkToItem);
menuEntry.addEventListener('click', linkToItem);
menuEntry.addEventListener('touchstart', linkToMobileItem);
menuEntry.addEventListener('touchmove', linkToMobileItem);
menuEntry.addEventListener('touchend', linkToMobileItem);
});
});
function hideIfNonMenuBounds(e) {
if (isEventOutsideMenu(e)) {
hideMenus();
}
}
addEventListener('mousemove', hideIfNonMenuBounds);
addEventListener('touchend', hideIfNonMenuBounds);
addEventListener('mouseup', hideIfNonMenuBounds);
addEventListener('mousedown', hideIfNonMenuBounds);
addEventListener('click', hideIfNonMenuBounds);
}
function handleMobileMenuHeights() {
function setAppHeight() {
document.documentElement.style.setProperty('--app-height', window.innerHeight + 'px');
}
addEventListener('resize', function() {
setAppHeight();
});
setAppHeight();
}
function handleGotoLinks() {
// Add anchor mimicking to elements with data-goto attributes
// This addresses SEO concerns of linking to noindex pages by allowing JS to handle the URL
const anchorElements = document.querySelectorAll('*[data-goto]');
anchorElements.forEach((anchorElement) => {
anchorElement.addEventListener('mouseover', () => {
anchorElement.style.cursor = 'pointer';
anchorElement.style.textDecoration = 'underline';
});
anchorElement.addEventListener('mouseout', () => {
anchorElement.style.cursor = 'unset';
anchorElement.style.textDecoration = 'unset';
});
anchorElement.addEventListener('mouseup', (e) => {
e.preventDefault();
});
anchorElement.addEventListener('mousedown', (e) => {
e.preventDefault();
});
anchorElement.addEventListener('click', (e) => {
e.preventDefault();
const anchorHref = anchorElement.getAttribute('data-goto');
if (anchorElement.hasAttribute('data-new-window') || e.ctrlKey || e.metaKey) {
window.open(anchorHref, '_blank');
} else {
window.open(anchorHref, '_self');
}
});
});
}
</script><script>
const authenticatedBlock = document.querySelector('#authenticated-block');
const unauthenticatedBlock = document.querySelector('#unauthenticated-block');
let authenticated = {
isAuthenticated: false,
isAdmin: false,
user: {
id: null,
name: null,
url: null,
profileImage: null,
}
};
fetch('/services/internal/data/articles-getAuthenticationStatus', {
headers: {
'Accept': 'application/json'
}
})
.then(function (result) {
return result.json()
})
.then(function (result) {
const res = result.result.data
if (!res.authenticated) {
unauthenticatedBlock.classList.add('shown')
} else {
authenticated.user.id = res.id;
authenticated.user.name = res.realName;
authenticated.user.url = res.profileUrl;
authenticated.user.profileImage = res.avatar;
authenticated.user.jobTitle = res.jobTitle;
authenticated.user.companyName = res.companyName;
bindProps('#header-username', null, null, (res.firstName || res.username), null)
bindProps('#header-avatar', null, res.avatar, null, null)
bindProps('#header-user-plug', res.profileUrl, null, res.realName, null)
bindProps('#header-user-edit', '/users/' + res.id + '/edit.html', null, null, null)
bindProps('#header-dropdown-manage-email', '/newsletters/' + res.id + '/manage.html', null, null, null)
bindProps('#dropdown-view-profile', res.profileUrl, null, null, null)
bindProps('#drafts-link', '/users/' + res.id + '/drafts.html', null, null, null)
if (res.isAdmin) {
// Construct backwards so the #after call places elements in the correct order
const firstUserAction = document.querySelector('#first-user-action')
const adminConsoleItem = document.createElement('li')
const adminConsoleLink = createLink('/dzone/staff/index.html', 'Admin Console')
adminConsoleItem.appendChild(adminConsoleLink)
firstUserAction.after(adminConsoleItem)
const moderationItem = document.createElement('li')
const moderationLink = createLink('/moderation/list.html', 'Moderation')
moderationItem.appendChild(moderationLink)
firstUserAction.after(moderationItem)
const bountyModerationItem = document.createElement('li')
const bountyModerationLink = createLink('/moderation/bounties', 'Bounty Moderation')
bountyModerationItem.appendChild(bountyModerationLink)
firstUserAction.after(bountyModerationItem)
}
authenticated.isAuthenticated = res.authenticated;
authenticated.isAdmin = res.isAdmin;
authenticatedBlock.classList.add('shown')
}
}).catch(function (result) {
console.error(result)
})
/**
* Binds different properties to the selected element.
*
* @param selector - Selector to select the element
* @param href - href attribute value
* @param src - src attribute value
* @param innerHTML - innerHTML property value
* @param innerText - innerText property value
*/
function bindProps(selector, href, src, innerHTML, innerText) {
const element = document.querySelector(selector)
if (element) {
if (href) element.href = href
if (src) element.src = src
if (innerHTML) element.innerHTML = innerHTML
if (innerText) element.innerText = innerText
}
}
/**
* Creates a new link element.
*
* @param href - href attribute value
* @param innerText - innerText property value
* @returns {HTMLAnchorElement} The generated link element
*/
function createLink(href, innerText) {
const link = document.createElement('a')
link.href = href
link.innerText = innerText
return link
}
</script><script>
const userHeader = document.querySelector('#user-header')
const userDropdown = document.querySelector('#user-dropdown')
const postDropdown = document.querySelector('#post-button')
const postMenu = document.querySelector('#post-menu')
let userDropdownOpen = false
let postDropdownOpen = false
document.addEventListener('click', function(event) {
if (postDropdown && postDropdown.contains(event.target)) {
setUserDropdown(false)
setPostDropdown(!postDropdownOpen)
} else if (userHeader && userHeader.contains(event.target)) {
setPostDropdown(false)
setUserDropdown(!userDropdownOpen)
} else {
setUserDropdown(false)
setPostDropdown(false)
}
})
function setUserDropdown(value) {
userDropdownOpen = value
if (userDropdownOpen) {
if (userDropdown) {
userDropdown.classList.add('open')
}
} else {
if (userDropdown) {
userDropdown.classList.remove('open')
}
}
}
function setPostDropdown(value) {
postDropdownOpen = value
if (postDropdownOpen) {
if (postMenu) {
postMenu.classList.add('open')
}
} else {
if (postMenu) {
postMenu.classList.remove('open')
}
}
}
</script><script>
document.addEventListener("alpine:init", () => {
Alpine.store('global', {
executeHttp(path, body, method) {
const options = {
method: method,
headers: {
[csrf.header]: csrf.token
}
};
if (method !== 'GET') {
options.body = JSON.stringify(body);
options.headers = {
...options.headers,
'Content-Type': 'application/json; charset=UTF-8'
};
}
return new Promise((resolve, reject) => {
fetch(path, options)
.then(res => {
if (!res.ok) {
reject(res);
} else {
resolve(res);
}
})
.catch(err => reject(err));
});
},
getFromService(path) {
return this.executeHttp(path, null, 'GET');
},
postToService(path, body = {}) {
return this.executeHttp(path, body, 'POST');
},
putToService(path, body = {}) {
return this.executeHttp(path, body, 'PUT');
}
});
});
</script>
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/colors.css">
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/article/styles.css">
<div id="body-container">
<div id="announcement-container-outer">
<div id="announcement-previous">
<i class="icon-angle-left"></i>
</div>
<div id="announcement-next">
<i class="icon-angle-right"></i>
</div>
<div id="announcement-container">
<div class="announcement announcement-count-1"
data-position="1">
<div class="body"><p><strong>Could your team report a vulnerability within 24 hours? </strong>Find out on September 23.</p></div>
<div class="spacer"></div>
<a href="https://cvent.me/O32zXR?utm_source=Announcements&amp;utm_medium=DzoneWeb&amp;utm_campaign=QtGroup-0923" target="_blank">
<button>Assess Your CRA Readiness</button>
</a>
</div>
</div>
</div>
<script type="text/javascript" async>
(function() {
let announcementPosition = 1;
let minAnnouncementPosition = -1;
let maxAnnouncementPosition = -1;
const announcementPrevBtn = document.querySelector('#announcement-previous');
const announcementNextBtn = document.querySelector('#announcement-next');
function withAnnouncements(callback) {
const announcements = document.querySelectorAll('#announcement-container .announcement');
for (let announcement of announcements) {
callback(announcement);
}
}
function initAnnouncementVars() {
document.querySelector(':root').style.setProperty('--mobile-announcement-separator-width', '1px');
withAnnouncements(function(announcement) {
const pos = parseInt(announcement.getAttribute('data-position'));
minAnnouncementPosition = minAnnouncementPosition === -1 ? pos : Math.min(minAnnouncementPosition, pos);
maxAnnouncementPosition = maxAnnouncementPosition === -1 ? pos : Math.max(maxAnnouncementPosition, pos);
});
if (document.querySelector('.announcementBarContainer')) {
document.querySelector(':root').style.setProperty('--body-top-padding', '0');
}
if (maxAnnouncementPosition <= 0) {
document.querySelector(':root').style.setProperty('--body-top-padding', '0');
}
sizeToFullWhenOneEntryOnMobile();
}
function setAnnouncementPosition(position) {
if (window.outerWidth >= 890) {
return; // we do not need to change the position, since we can display everything on desktop.
}
// Make the announcement cyclical
if (minAnnouncementPosition !== -1 && maxAnnouncementPosition !== -1) {
if (position > maxAnnouncementPosition) {
position = minAnnouncementPosition; // overflow to the first announcement
} else if (position < minAnnouncementPosition) {
position = maxAnnouncementPosition; // underflow to the last announcement
}
announcementPosition = position;
}
const shownAnnouncements = [];
let reverseFlex = false; // should only be true when the first and last items are showing
// Now that the position is valid, apply the transforms
withAnnouncements(function(announcement) {
const pos = parseInt(announcement.getAttribute('data-position'));
const isWrapped = position === maxAnnouncementPosition && pos === minAnnouncementPosition; // showing first + last at same time
const doesNextQualify = window.outerWidth >= 500 && (pos === position + 1 || isWrapped);
if (pos === position || doesNextQualify) {
shownAnnouncements.push(announcement);
} else {
announcement.style.display = 'none';
}
announcement.style.opacity = 0.0;
if (isWrapped) {
reverseFlex = true;
}
});
for (let announcement of shownAnnouncements) {
announcement.style.display = 'flex';
announcement.style.opacity = 1.0;
}
const announcementContainer = document.querySelector('#announcement-container');
if (announcementContainer) {
announcementContainer.style.flexDirection = reverseFlex ? 'row-reverse' : 'row';
}
}
function resetAnnouncements() {
announcementPosition = 1;
const announcementContainer = document.querySelector('#announcement-container');
if (announcementContainer) {
announcementContainer.style.flexDirection = 'row';
}
withAnnouncements(function(announcement) {
announcement.style.opacity = 1.0;
announcement.style.display = 'flex';
});
}
function sizeToFullWhenOneEntryOnMobile() {
if (maxAnnouncementPosition <= 2 && announcementPrevBtn && announcementNextBtn) {
announcementPrevBtn.style.display = maxAnnouncementPosition === 2 && window.outerWidth < 500 ? 'flex' : 'none';
announcementNextBtn.style.display = maxAnnouncementPosition === 2 && window.outerWidth < 500 ? 'flex' : 'none';
}
if (maxAnnouncementPosition === 1 && window.outerWidth >= 500 && window.outerWidth < 890) {
document.querySelector(':root').style.setProperty('--mobile-announcement-separator-width', '0');
document.querySelector('#announcement-container .announcement').style.maxWidth = '100%';
}
}
function resetAnnouncementsOnResize() {
announcementPosition = 1; // we want to reset the announcement position every resize
if (window.outerWidth >= 890) { // 4 announcements can be shown (215px * 4) + separator padding
resetAnnouncements();
} else { // if we're still on mobile, set the position to normalize things after resize
setAnnouncementPosition(announcementPosition);
sizeToFullWhenOneEntryOnMobile();
}
}
window.addEventListener('resize', resetAnnouncementsOnResize);
initAnnouncementVars();
setAnnouncementPosition(announcementPosition); // sets the min & max positions as well as initializes transforms
if (announcementPrevBtn) {
announcementPrevBtn.onclick = function() {
setAnnouncementPosition(announcementPosition - 1);
};
}
if (announcementNextBtn) {
announcementNextBtn.onclick = function() {
setAnnouncementPosition(announcementPosition + 1);
};
}
})(); </script>
<div id="ftl-article" class="trending-article-body">
<aside class="trending-sidebar" aria-labelledby="related-sidebar-heading">
<div class="trending">
<h2 id="related-sidebar-heading">Related</h2>
<div class="trending-separator"></div>
<ul>
<li class="item">
<a href="/articles/leveraging-aiops-for-observability-workflows" class="related-link">Leveraging AIOps for Observability Workflows: How to Improve the Scalability and Intelligence of Observability</a>
</li>
<li class="item">
<a href="/articles/monitoring-and-troubleshooting-serverless-apps" class="related-link">Monitoring and Troubleshooting Serverless Applications</a>
</li>
<li class="item">
<a href="/articles/status-page-aggregation-technology" class="related-link">Understanding Status Page Aggregation: Inside the Technology of a Typical Status Page Aggregator</a>
</li>
<li class="item">
<a href="/articles/how-to-use-cdn-in-your-website" class="related-link">How To Use CDN in Your Website</a>
</li>
</ul>
</div>
</aside>
<div class="container-fluid body trending-article-fluid">
<div class="row">
<div class="col-md-12">
<div class="articles-wrap">
<div class="ad-container">
<div id="div-gpt-ad-1435246566686-0" class="ads-billboard-article dz2_article_billboard_new" data-gpt-slot="top"></div>
</div>
<div class="article-stream widget-top-border">
<div class="article-main">
<div class="content-right-images">
<div id="div-gpt-ad-1435246566686-2" class="sidebar-ad dz2_article_halfpage_new" data-gpt-slot="sidebar1"></div>
<div class="trending-separator"></div>
<aside class="trending" aria-labelledby="trending-sidebar-heading">
<h2 id="trending-sidebar-heading">Trending</h2>
<ul>
<li class="item">
<a href="/articles/gossips-on-cryptography-part-3" class="trending-link" target="_self">Gossip on Cryptography: Part 3</a>
</li>
<li class="item">
<a href="/articles/docker-build-startup-time" class="trending-link" target="_self">The Startup Time Trick Hiding Inside Your Docker Build</a>
</li>
<li class="item">
<a href="/articles/bottleneck-of-scaling" class="trending-link" target="_self">The Bottleneck of Scaling</a>
</li>
<li class="item">
<a href="/articles/spark-slow-joins" class="trending-link" target="_self">Your Spark Job Isn't Slow Because of Bad Code. It's Slow Because of the Wrong Join</a>
</li>
</ul>
</aside>
</div>
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Article",
"headline": "CDN Observability: Why You Must Monitor Your Extended Infrastructure",
"author": [{"image":{"@type":"ImageObject","caption":"Or Hillel","url":"https://secure.gravatar.com/avatar/7342bc85b551909a1df749e7cbbc6837?d=identicon&r=PG"},"@type":"Person","worksFor":{"@type":"Organization","name":"Green Lamp"},"name":"Or Hillel","description":"Helps executive teams, marketers and data analysts leverage innovative digital strategies and emerging technologies to outsmart their competitors.","url":"https://dzone.com/users/4553056/orhillel.html"}],
"audience": "software developers",
"keywords": "",
"timeRequired": "PT4M",
"commentCount": 0,
"wordCount": "995",
"accessMode": "textual, visual",
"datePublished": "2023-07-12T00:00:00Z",
"articleSection": "",
"publisher": {
"@type": "Organization",
"name": "DZone",
"url": "https://dzone.com",
"logo": {
"@type": "ImageObject",
"url": "https://dzone.com/themes/dz20/images/dz_logo_2021_cropped.png"
}
},
"articleBody": "In today's digital landscape, businesses heavily rely on content delivery networks (CDNs) to ensure efficient and reliable delivery of their web content to users across the globe. CDNs play a crucial role in enhancing website performance and user experience. However, the extended infrastructure of CDNs requires diligent monitoring to ensure optimal performance and identify potential issues. In this article, we will explore the importance of CDN observability and how it contributes to the success of online businesses. What Is CDN Observability? CDN observability refers to gaining insights into the CDN infrastructure's performance, availability, and reliability. It involves monitoring and analyzing various metrics and data points to ensure the CDN functions as expected. By closely observing the CDN, businesses can proactively identify and resolve issues before they impact end-user experience. The Need for Observability in CDNs CDNs operate on a vast scale, spanning multiple geographical locations and interconnected systems. The extended infrastructure of CDNs introduces complexities that can hinder optimal performance. With proper observability, businesses may avoid difficulties in detecting and resolving issues, leading to decreased website performance, slow loading times, and dissatisfied users. Critical Metrics for CDN Observability To effectively monitor CDN performance, it is essential to track key metrics that provide valuable insights. Some of the critical metrics include: Latency: Monitoring the latency helps assess how quickly content is delivered to end users. Higher latency can lead to increased loading times and a poor user experience.Availability: Ensuring high availability is crucial to maintaining uninterrupted content delivery. Monitoring availability helps identify any outages or downtime that may impact users.Cache Hit Ratio: The cache hit ratio measures the effectiveness of content caching. A higher cache hit ratio indicates efficient content delivery, reducing the load on origin servers.Error Rates: Tracking error rates helps identify issues such as failed requests, timeouts, or invalid responses. By addressing these errors promptly, businesses can enhance user experience. 4 Reasons To Invest in CDN Monitoring 1. Ensuring Business Continuity Through Major Outage Detection and Mitigation Investing in CDN monitoring allows businesses to detect and mitigate major outages efficiently. CDNs (Content Delivery Networks) deliver website content and applications to users worldwide. If a CDN experience a major outage can result in significant downtime and loss of user engagement. By implementing monitoring solutions, businesses can receive real-time alerts and notifications when an outage occurs. This enables them to take immediate action to address the issue, such as switching to an alternative CDN provider (multi-CDN strategy) or resolving the underlying problem. Detecting and mitigating major outages quickly helps minimize the impact on user experience, maintain customer satisfaction, and safeguard business revenue. 2. Proactively Identifying Business-Impacting Minor/Micro Outages In addition to significant outages, minor or micro outages can also negatively affect businesses. These outages might not completely disrupt the website or application functionality, but they can cause performance degradation, slow loading times, or intermittent errors. CDN monitoring tools enable businesses to identify such issues promptly. By closely monitoring various performance metrics, including response time, latency, and availability, organizations can detect and address these minor outages before they escalate into major problems. Proactively identifying and resolving these issues ensure consistent and optimal user experiences, improving customer satisfaction and reducing the risk of potential revenue loss. 3. Assessing DNS Performance for Optimal CDN Functionality The Domain Name System (DNS) is crucial in routing user requests to the nearest CDN server, ensuring efficient content delivery. Monitoring the DNS performance of a CDN allows businesses to evaluate its effectiveness in routing traffic and delivering content to end-users. Organizations can identify any potential bottlenecks or inefficiencies in the DNS infrastructure by tracking DNS response times, resolution rates, and accuracy. This information helps optimize DNS configurations, select the most suitable CDN provider, and ensure smooth content delivery across different regions. Evaluating DNS performance through monitoring contributes to faster and more reliable content distribution, enhancing overall user experience. 4. Enhancing Global Performance for Seamless User Experience Investing in CDN monitoring enables businesses to improve their website or application performance on a global scale. Monitoring tools provide valuable insights into various performance metrics across different geographical regions, such as network latency, server response times, and content download speeds. This data allows organizations to identify performance issues in specific regions and take corrective actions accordingly. By optimizing content caching, load balancing, and server configurations based on monitoring results, businesses can enhance their global performance, reduce latency, and provide faster access to content for users worldwide. Improved performance leads to increased user engagement, more extended website/app visits, and a competitive advantage in the digital landscape. The Benefits of CDN Observability CDN observability offers several benefits that positively impact businesses and their online presence. Let's explore some of the key advantages: Proactive Issue Resolution By closely monitoring the extended CDN infrastructure, businesses can proactively detect and resolve issues before they impact users. This ensures smooth content delivery and minimizes potential disruptions, improving website performance and user satisfaction. Enhanced User Experience A fast and reliable website is crucial for attracting and retaining users. CDN observability allows businesses to identify performance bottlenecks and optimize content delivery. This results in reduced latency, faster loading times, and an overall enhanced user experience. Data-Driven Decision Making CDN observability provides businesses with valuable data and insights regarding the performance of their CDN infrastructure. By leveraging this data, organizations can make informed decisions about optimizing CDN configurations, resource allocation, and content caching strategies. Improved ROI and Cost Efficiency Efficient CDN performance directly impacts the bottom line of businesses. Organizations can achieve a better return on investment (ROI) and cost efficiency by optimizing CDN usage and minimizing bandwidth costs. CDN observability helps identify areas for optimization, leading to improved cost management. Conclusion CDN observability is a critical aspect of maintaining a high-performing web presence. By closely monitoring the extended infrastructure of CDNs, businesses can proactively detect and resolve issues, optimize content delivery, and enhance user experience. Embracing CDN observability empowers organizations to make data-driven decisions, improve ROI, and stay ahead in today's competitive digital landscape.",
"mainEntityOfPage": {
"@type": "WebPage",
"@id": "https://dzone.com/articles/cdn-observability-why-you-must-monitor-your-extend"
},
"image": {
"@type": "ImageObject",
"url": "https://dz2cdn1.dzone.com/storage/article-thumb/17063168-thumb.jpg"
}
}
</script>
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "DZone",
"item": "https://dzone.com"
},
{
"@type": "ListItem",
"position": 2,
"name": "Software Design and Architecture",
"item": "https://dzone.com/software-design-and-architecture"
},
{
"@type": "ListItem",
"position": 3,
"name": "Performance",
"item": "https://dzone.com/performance"
},
{
"@type": "ListItem",
"position": 4,
"name": "CDN Observability: Why You Must Monitor Your Extended Infrastructure",
"item": "https://dzone.com/articles/cdn-observability-why-you-must-monitor-your-extend"
}
]
}
</script>
<article>
<div class="content">
<div class="header">
<ol class="breadcrumb">
<li class="server"><a href="https://dzone.com">DZone</a></li>
<li class="server"><a href="https://dzone.com/software-design-and-architecture">Software Design and Architecture</a></li>
<li class="server"><a href="https://dzone.com/performance">Performance</a></li>
<li class="active server">CDN Observability: Why You Must Monitor Your Extended Infrastructure</li>
</ol>
<div class="header-title">
<div class="title">
<h1 class="article-title">CDN Observability: Why You Must Monitor Your Extended Infrastructure</h1>
</div>
<div class="subhead">
<p>Discover the importance of CDN observability for monitoring your extended infrastructure. Optimize your website's performance with insights into CDN performance metrics.</p>
</div>
<div class="publish-meta">
By<span style="user-select: none;">&nbsp;</span>
<div class="article-author-meta">
<img src="https://dz2cdn1.dzone.com/thumbnail?fid=14670681&w=80" class="avatar" alt="Or Hillel user avatar" width="40">
<div class="author-info">
<span class="author-name">
<a href="/users/4553056/orhillel.html" rel="nofollow" data-core-user="false">Or Hillel</a>
</span>
</div>
&middot;
</div>
<span class="author-date">
Jul. 12, 23
</span>
&middot;
<span>Opinion</span>
</div>
</div>
</div>
<div class="author-n-useraction">
<div class="like action" x-data="engagementModal(articleId)">
<span id="activity-like-icon" class="dz-like icon-thumbs-up" x-on:click="updateStore()"></span>
<span class="action-label like-text" x-on:click="open()" x-cloak>
<span>Likes</span>
<span id="activity-like-counter" class="like-count">(2)</span>
</span>
<template x-teleport="body">
<div class="engagement-overlay" x-show="$store.article.engagement.open && nodeId === $store.article.id" x-on:keyup.escape.window="close()">
<div class="engagement-modal">
<div class="inner" x-on:click.outside="close()">
<div class="header">
<div class="title">Likes</div>
<button class="close" x-on:click="close()"></button>
</div>
<div class="content">
<div x-show="$store.article.engagement.initializing" class="loading-screen">
<i class="icon icon-spin3 anim-spin"></i>
</div>
<div x-show="!$store.article.engagement.initializing">
<template x-for="user in $store.article.engagement.users" :key="user.id">
<div class="media">
<div class="media-left">
<img class="avatar"
x-bind:src="user.profile.profileImage"
loading="lazy"
width="50"
height="50"
>
</div>
<div class="media-right">
<a x-bind:href="user.computed.url" x-html="user.profile.name"></a>
<div x-show="formatJobData(user)" x-html="formatJobData(user)"></div>
</div>
</div>
</template>
</div>
<div x-show="isDataUnavailable()" class="center-screen">
<div x-show="!$store.article.engagement.unauthorized">
<div>There are no likes...yet! &#128064;</div>
<div>Be the first to like this post!</div>
</div>
<div x-show="$store.article.engagement.unauthorized">
<div>It looks like you're not logged in.</div>
<div><a href="/users/login.html">Sign in</a> to see who liked this post!</div>
</div>
</div>
<div x-show="isFooterShowing()">
<div class="footer">
<button class="btn btn-primary" x-on:click="fetchEngagements()"
x-bind:disabled="$store.article.engagement.loading"
>
Load More
<i x-show="$store.article.engagement.loading" class="icon icon-spin3 anim-spin"></i>
</button>
</div>
</div>
</div>
</div>
</div>
</div>
</template> </div>
<div class="action comment-action">
<span class="comment">
<i class="icon-comment"></i>
<span class="action-label">Comment</span>
<span id="activity-comment-counter" class="comment-count"></span>
</span>
</div>
<div class="save action">
<div id="activity-save-icon" class="save icon-star-empty">
<span id="activity-save-text" class="action-label">Save</span>
</div>
</div>
<div class="tweet action">
<a id="tweet-link" href="" class="title" target="_blank">
<span><i class="icon-twitter"></i></span>
<span class="action-label">Tweet</span>
</a>
</div>
<div class="linkedin action">
<a id="linkedin-link" href="https://www.linkedin.com/sharing/share-offsite/?url=https://dzone.com/articles/cdn-observability-why-you-must-monitor-your-extend" class="title" target="_blank">
<span><i class="icon-linkedin-1"></i></span>
<span class="action-label">Share</span>
</a>
</div>
<div class="right-most">
<div id="activity-view-container" class="article-views action">
<i class="icon-eye"></i>
<span class="action-label view-count">6.0K Views</span>
</div>
</div>
</div>
<div class="signin-prompt">
<p>Join the DZone community and get the full member experience.</p>
<a id="article-signin-prompt" href="/static/registration.html">Join For Free</a>
</div>
<div class="arrow-down"></div>
<div id="top-bumper-container"></div>
<div>
<div class="content-html"><p dir="ltr">In today's digital landscape, businesses heavily rely on content delivery networks (CDNs) to ensure efficient and reliable delivery of their web content to users across the globe. CDNs play a crucial role in enhancing website performance and user experience. However, the extended infrastructure of CDNs requires diligent monitoring to ensure optimal performance and identify potential issues. In this article, we will explore the importance of CDN observability and how it contributes to the success of online businesses.</p>
<h2 dir="ltr">What Is CDN Observability?</h2>
<p dir="ltr">CDN observability refers to gaining insights into the CDN infrastructure's performance, availability, and reliability. It involves monitoring and analyzing various metrics and data points to ensure the CDN functions as expected. By closely observing the CDN, businesses can proactively identify and resolve issues before they impact end-user experience.</p>
<h2 dir="ltr">The Need for Observability in CDNs</h2>
<p dir="ltr">CDNs operate on a vast scale, spanning multiple geographical locations and interconnected systems. The extended infrastructure of CDNs introduces complexities that can hinder optimal performance. With proper observability, businesses may avoid difficulties in detecting and resolving issues, leading to decreased website performance, slow loading times, and dissatisfied users.</p>
<h2 dir="ltr">Critical Metrics for CDN Observability</h2>
<p dir="ltr">To effectively monitor <a href="https://dzone.com/articles/how-test-benchmark-cdns">CDN performance</a>, it is essential to track key metrics that provide valuable insights. Some of the critical metrics include:</p>
<ul>
<li dir="ltr"><strong>Latency:&nbsp;</strong>Monitoring the latency helps assess how quickly content is delivered to end users. Higher latency can lead to increased loading times and a poor user experience.</li>
<li dir="ltr"><strong>Availability:</strong> Ensuring high availability is crucial to maintaining uninterrupted content delivery. Monitoring availability helps identify any outages or downtime that may impact users.</li>
<li dir="ltr"><strong>Cache Hit Ratio:&nbsp;</strong>The cache hit ratio measures the effectiveness of content caching. A higher cache hit ratio indicates efficient content delivery, reducing the load on origin servers.</li>
<li dir="ltr"><strong>Error Rates:</strong> Tracking error rates helps identify issues such as <a href="https://dzone.com/articles/the-types-of-http-status-codes">failed requests</a>, timeouts, or invalid responses. By addressing these errors promptly, businesses can enhance user experience.</li>
</ul>
<h2 dir="ltr">4 Reasons To Invest in CDN Monitoring</h2>
<h3 dir="ltr">1. Ensuring Business Continuity Through Major Outage Detection and Mitigation</h3>
<p dir="ltr">Investing in CDN monitoring allows businesses to detect and mitigate major outages efficiently. CDNs (Content Delivery Networks) deliver website content and applications to users worldwide. If a CDN experience a major outage can result in significant downtime and loss of user engagement. By implementing monitoring solutions, businesses can receive real-time alerts and notifications when an outage occurs. This enables them to take immediate action to address the issue, such as switching to an alternative CDN provider (<a href="https://www.ioriver.io/blog/multi-cdn-strategy">multi-CDN strategy</a>) or resolving the underlying problem. Detecting and mitigating major outages quickly helps minimize the impact on user experience, maintain customer satisfaction, and safeguard business revenue.</p>
<h3 dir="ltr">2. Proactively Identifying Business-Impacting Minor/Micro Outages</h3>
<p dir="ltr">In addition to significant outages, minor or micro outages can also negatively affect businesses. These outages might not completely disrupt the website or application functionality, but they can cause performance degradation, slow loading times, or intermittent errors. CDN monitoring tools enable businesses to identify such issues promptly. By closely monitoring various performance metrics, including response time, latency, and availability, organizations can detect and address these minor outages before they escalate into major problems. Proactively identifying and resolving these issues ensure consistent and optimal user experiences, improving customer satisfaction and reducing the risk of potential revenue loss.</p>
<h3 dir="ltr">3. Assessing DNS Performance for Optimal CDN Functionality</h3>
<p dir="ltr">The Domain Name System (DNS) is crucial in routing user requests to the nearest CDN server, ensuring efficient content delivery. Monitoring the DNS performance of a CDN allows businesses to evaluate its effectiveness in routing traffic and delivering content to end-users. Organizations can identify any potential bottlenecks or inefficiencies in the DNS infrastructure by tracking DNS response times, resolution rates, and accuracy. This information helps optimize DNS configurations, select the most suitable CDN provider, and ensure smooth content delivery across different regions. Evaluating DNS performance through monitoring contributes to faster and more reliable content distribution, enhancing overall user experience.</p>
<h3 dir="ltr">4. Enhancing Global Performance for Seamless User Experience</h3>
<p dir="ltr">Investing in CDN monitoring enables businesses to improve their website or application performance on a global scale. Monitoring tools provide valuable insights into various performance metrics across different geographical regions, such as network latency, server response times, and content download speeds. This data allows organizations to identify performance issues in specific regions and take corrective actions accordingly. By optimizing content caching, load balancing, and server configurations based on monitoring results, businesses can enhance their global performance, reduce latency, and provide faster access to content for users worldwide. Improved performance leads to increased user engagement, more extended website/app visits, and a competitive advantage in the digital landscape.</p>
<h2 dir="ltr">The Benefits of CDN Observability</h2>
<p dir="ltr">CDN observability offers several benefits that positively impact businesses and their online presence. Let's explore some of the key advantages:</p>
<h3 dir="ltr">Proactive Issue Resolution</h3>
<p dir="ltr">By closely monitoring the extended CDN infrastructure, businesses can proactively detect and resolve issues before they impact users. This ensures smooth content delivery and minimizes potential disruptions,<a href="https://dzone.com/articles/how-to-optimize-the-performance-and-security-of-yo">&nbsp;improving website performance</a> and user satisfaction.</p>
<h3 dir="ltr">Enhanced User Experience</h3>
<p dir="ltr">A fast and reliable website is crucial for attracting and retaining users. CDN observability allows businesses to identify performance bottlenecks and optimize content delivery. This results in reduced latency, faster loading times, and an overall enhanced user experience.</p>
<h3 dir="ltr">Data-Driven Decision Making</h3>
<p dir="ltr">CDN observability provides businesses with valuable data and insights regarding the performance of their CDN infrastructure. By leveraging this data, organizations can make informed decisions about optimizing CDN configurations, resource allocation, and content caching strategies.</p>
<h3 dir="ltr">Improved ROI and Cost Efficiency</h3>
<p dir="ltr">Efficient CDN performance directly impacts the bottom line of businesses. Organizations can achieve a better return on investment (ROI) and cost efficiency by optimizing CDN usage and minimizing bandwidth costs. CDN observability helps identify areas for optimization, leading to improved cost management.</p>
<h2 dir="ltr">Conclusion</h2>
<p dir="ltr">CDN observability is a critical aspect of maintaining a high-performing web presence. By closely monitoring the extended infrastructure of CDNs, businesses can proactively detect and resolve issues, optimize content delivery, and enhance user experience. Embracing CDN observability empowers organizations to make data-driven decisions, improve ROI, and stay ahead in today's competitive digital landscape.</p></div>
</div>
<div id="bottom-bumper-container"></div>
<div class="article-tag-pill-container">
<span class="article-tag-pill">Content delivery network</span>
<span class="article-tag-pill">Domain Name System</span>
<span class="article-tag-pill">Observability</span>
<span class="article-tag-pill">Performance Monitor</span>
</div>
<div class="attribution">
<p>Opinions expressed by DZone contributors are their own.</p>
</div>
</div>
</article>
</div>
<div class="trending-separator goto"></div>
<aside class="trending goto" aria-labelledby="related-mobile-heading">
<h2 id="related-mobile-heading">Related</h2>
<ul>
<li class="item">
<a href="/articles/leveraging-aiops-for-observability-workflows" class="goto-link related-link">Leveraging AIOps for Observability Workflows: How to Improve the Scalability and Intelligence of Observability</a>
</li>
<li class="item">
<a href="/articles/monitoring-and-troubleshooting-serverless-apps" class="goto-link related-link">Monitoring and Troubleshooting Serverless Applications</a>
</li>
<li class="item">
<a href="/articles/status-page-aggregation-technology" class="goto-link related-link">Understanding Status Page Aggregation: Inside the Technology of a Typical Status Page Aggregator</a>
</li>
<li class="item">
<a href="/articles/how-to-use-cdn-in-your-website" class="goto-link related-link">How To Use CDN in Your Website</a>
</li>
</ul>
</aside>
</div>
<div id="div-gpt-ad-1435246566686-11" class="ads-bottom-leaderboard dz2_article_bottom" data-gpt-slot="bottom"></div>
<div class="layout-card widget-top-border partner-resources-block" style="width:100%; margin-bottom: 1em;">
<div class="main-container">
<div class="featured-header">
<h2>
<span>Partner Resources</span>
</h2>
</div>
<div class="partner-resources-container">
<div id="div-gpt-ad-1435246566686-5" class="resource-block dz2_partner_resource_link" data-gpt-slot="partner" data-gpt-position="pr1"></div>
<div id="div-gpt-ad-1435246566686-6" class="resource-block dz2_partner_resource_link" data-gpt-slot="partner" data-gpt-position="pr2"></div>
<div id="div-gpt-ad-1435246566686-7" class="resource-block dz2_partner_resource_link" data-gpt-slot="partner" data-gpt-position="pr3"></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="bottom-sticky-ad-container">
<span class="bottom-sticky-ad-close" title="close"
x-on:click="$el.parentElement.classList.add('closed')">×</span>
<div id="div-gpt-ad-1635294790718-12" class="bottom-sticky-ad dz2_sticky_footer_leaderboard" data-gpt-slot="bottomStickyFooter"></div>
</div>
<div class="modal fade bd-example-modal-lg" id="modal-message" tabindex="-1" role="dialog" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header"></div>
<div class="modal-body"></div>
</div>
</div>
</div>
</div>
</div>
<div class="comments-overlay"></div>
<div id="comment-box">
<div class="comment-box-wrapper">
<div id="comment-input-editor"></div>
</div>
<div class="info hidden"></div>
<div class="comments-content" style="display: none;">
<div class="comment-header">
<hr />
<span class="icon-comment">
<span class="numOfComments"></span> Comments
</span>
</div>
<div class="comments"></div>
</div>
</div>
<script async>var articleTitle = 'CDN Observability: Why You Must Monitor Your Extended Infrastructure';
var articleUrl = 'https://dzone.com/articles/cdn-observability-why-you-must-monitor-your-extend';
var retweetLink = document.querySelector('#tweet-link');
function retweet(event) {
event.preventDefault();
event.stopPropagation();
var twitter = 'https://twitter.com/intent/tweet';
var params = '?text=' + encodeURIComponent(articleTitle) + '&url=' + articleUrl + '&ref=dzone.com&via=DZoneInc';
var win = window.open(twitter + params, '_blank');
win.focus();
}
retweetLink.addEventListener('click', retweet);
function showStatusMessage(options) {
var modal = document.getElementById('modal-message');
if(modal) {
modal.classList.add(options.type);
var modalBody = modal.querySelector('.modal-content .modal-body');
var modalHeader = modal.querySelector('.modal-content .modal-header');
modalHeader.innerText = options.header ? options.header : '';
modalBody.innerText = options.body ? options.body : '';
$(modal).modal('show');
$(modal).on('hidden.bs.modal', function () {
modal.classList.remove(options.type);
});
}
}
function showConfirmMessage(options) {
var modal = document.getElementById('modal-message');
if(modal) {
modal.classList.add(options.type);
var modalBody = modal.querySelector('.modal-content .modal-body');
var modalHeader = modal.querySelector('.modal-content .modal-header');
modalHeader.innerText = options.header ? options.header : '';
modalBody.innerText = options.body ? options.body : '';
if (options.textarea) {
var textareaDiv = document.createElement('div');
var textareaLabel = document.createElement('label');
textareaLabel.setAttribute('for', 'modal-textarea');
textareaLabel.innerText = options.textarea.label;
var textarea = document.createElement('textarea');
textarea.id = 'modal-textarea';
textarea.placeholder = (options.textarea.placeholder || '');
textarea.setAttribute('rows', (options.textarea.rows || 3));
textarea.classList.add('form-control', 'not-resizable');
if (options.textarea.maxlength) {
textarea.maxLength = options.textarea.maxlength;
}
textareaDiv.appendChild(textareaLabel);
textareaDiv.appendChild(textarea);
modalBody.appendChild(textareaDiv);
}
var btnContainer = document.createElement('div');
btnContainer.classList.add('btn-container');
var noBtn = document.createElement('button');
noBtn.innerText = options.noBtnText ? options.noBtnText : 'No';
noBtn.classList.add('no-btn');
var yesBtn = document.createElement('button');
yesBtn.innerText = options.yesBtnText ? options.yesBtnText : 'Yes';
yesBtn.classList.add('yes-btn');
btnContainer.appendChild(noBtn);
btnContainer.appendChild(yesBtn);
modalBody.appendChild(btnContainer);
$(modal).modal('show');
$(noBtn).one('click', function() {
$(modal).modal('hide');
if(options.noCallback) {
$(modal).one('hidden.bs.modal', function () {
options.noCallback();
});
}
});
$(yesBtn).one('click', function() {
$(modal).modal('hide');
if(options.yesCallback) {
$(modal).one('hidden.bs.modal', function () {
options.yesCallback();
});
}
});
$(modal).on('hidden.bs.modal', function () {
modal.classList.remove(options.type);
});
}
}
function getSuspensionBody() {
return 'We regret to inform you that your DZone account has been suspended for violating our Guidelines. ' +
'Please reach out to editors@dzone.com if you would like additional information.';
}</script>
<style>.engagement-overlay {
width: 100%;
height: 100%;
position: fixed;
top: 0;
left: 0;
background: rgb(0, 0, 0, 0.5);
z-index: 10000;
}
.engagement-modal {
display: flex;
align-items: center;
justify-content: center;
position: fixed;
z-index: 10;
width: 100%;
height: 100%;
}
.engagement-modal .inner {
background-color: white;
border-radius: 0.5em;
margin: auto;
border: 1px solid #cccccc;
}
.engagement-modal .header {
padding: 20px 50px 10px 30px;
position: relative;
}
.engagement-modal .title {
font-size: 20px;
font-weight: bold;
color: #333333;
}
.engagement-modal .title:hover {
text-decoration: none;
}
.engagement-modal .close {
font-size: 18px;
position: absolute;
top: 18px;
right: 20px;
width: 32px;
height: 32px;
background: none;
border: none;
opacity: 0.8;
font-weight: bold;
text-shadow: 0 1px 0 #fff;
}
.engagement-modal .close:hover {
background-color: rgba(146, 148, 151, 0.2);
color: #000;
border-radius: 50%;
}
.engagement-modal .close:after {
content: '\2715';
}
.engagement-modal .content {
padding: 0 30px 20px;
width: min(450px, 90vw);
height: min(450px, 90vw);
scrollbar-width: thin;
overflow: auto;
overscroll-behavior: contain;
}
.engagement-modal .loading-screen,
.engagement-modal .content .center-screen {
display: flex;
justify-content: center;
align-items: center;
height: 100%;
font-size: 18px;
}
.engagement-modal .content .center-screen a {
color: var(--acc-ffffff-blue-1);
font-weight: bold;
}
.engagement-modal .loading-screen i {
font-size: 24px;
}
.engagement-modal .media-left,
.engagement-modal .media-right {
display: table-cell;
vertical-align: top;
}
.engagement-modal .media-left {
padding-right: 10px;
}
.engagement-modal .media-right {
padding-left: 10px;
}
.engagement-modal .media a {
color: black;
font-size: 16px;
}
.engagement-modal .avatar {
border-radius: 50%;
}
.engagement-modal .footer {
margin: 20px 0 0;
display: flex;
justify-content: center;
align-items: center;
background-color: unset !important;
border-top: none !important;
}
.engagement-modal .footer .btn {
border: 1px solid transparent;
}
.engagement-modal .footer .btn-primary {
color: #fff;
border-color: #2e6da4;
}
.engagement-modal .footer button {
background-color: var(--acc-ffffff-blue-2);
padding: 6px 12px;
border-radius: 4px;
}
.engagement-modal .footer button:hover {
filter: brightness(1.2);
}
@keyframes anim-spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(359deg);
}
}
.engagement-modal .anim-spin {
display: inline-block;
animation: anim-spin 2s infinite linear;
}</style>
<script>document.addEventListener('alpine:init', () => {
Alpine.data('engagementModal', (nodeId) => ({
nodeId: null,
init() {
this.nodeId = nodeId;
},
open() {
this.updateStore();
this.$store.article.engagement.open = true;
if (this.$store.article.engagement.page === 1 && !this.$store.article.engagement.unauthorized) {
this.$store.article.engagement.initializing = true;
this.fetchEngagements();
}
},
close() {
if (this.$store.article.engagement.open) {
this.$store.article.engagement.open = false;
}
},
updateStore() {
if (this.nodeId !== this.$store.article.id) {
this.$store.article.engagement.reset();
this.$store.article.id = this.nodeId;
}
},
fetchEngagements() {
if (this.$store.article.engagement.loading || !this.$store.article.engagement.additional) {
return;
}
this.$store.article.engagement.loading = true;
this.$store.global.getFromService('/services/nodes/' + this.$store.article.id + '/engagements?page=' + this.$store.article.engagement.page)
.then(res => {
res.json().then(data => {
for (let user of data.engagements) {
this.$store.article.engagement.users.push(user);
}
this.$store.article.engagement.additional = data.additional;
this.$store.article.engagement.page++;
});
})
.catch(err => {
err.json().then(data => {
if (data.error?.code === 4011) {
this.$store.article.engagement.unauthorized = true;
} else {
this.$store.modal_engagement_error.open();
}
});
})
.finally(() => {
// Allow the loader to gracefully exit
setTimeout(() => {
this.$store.article.engagement.loading = false;
this.$store.article.engagement.initializing = false;
}, 200);
});
},
formatJobData(user) {
if (user.profile.jobTitle && user.profile.companyName) {
return user.profile.jobTitle + ', ' + user.profile.companyName;
}
if (user.profile.jobTitle) {
return user.profile.jobTitle;
}
if (user.profile.companyName) {
return user.profile.companyName;
}
return null;
},
isDataUnavailable() {
return !this.$store.article.engagement.initializing && !this.$store.article.engagement.users.length;
},
isFooterShowing() {
return !this.$store.article.engagement.initializing
&& this.$store.article.engagement.additional
&& this.$store.article.engagement.page > 1;
}
}));
});
</script>
<div class="alpine-overlay" x-cloak x-show="$store.modal_engagement_error._open">
<div id="modal_engagement_error"
class="alpine-modal"
role="dialog"
tabindex="-1"
x-show="$store.modal_engagement_error._open"
x-on:click.self="$store.modal_engagement_error.dismissible && $store.modal_engagement_error.close()"
x-cloak
x-transition
>
<div class="dz-style modal-inner centered relative">
<button x-show="$store.modal_engagement_error.closeable"
class="btn-close"
x-on:click="$store.modal_engagement_error.close()"
aria-label="Close">
</button>
<div x-show="$store.modal_engagement_error.title" class="modal-header p-sm mt-sm mb-md">
<div class="title " x-text="$store.modal_engagement_error.title"></div>
</div>
<div class="modal-content py-md px-lg" x-bind:class="{ 'has-top-border': $store.modal_engagement_error.title }">
<p x-show="$store.modal_engagement_error.bodyText" class="my-none" x-text="$store.modal_engagement_error.bodyText"></p>
<p>The likes didn't load as expected. Please refresh the page and try again.</p>
</div>
<div x-show="$store.modal_engagement_error.options.length" class="modal-footer p-sm">
<template x-for="option in $store.modal_engagement_error.options">
<button x-show="option.canDisplay" x-text="option.text"
type="button"
x-bind:id="'button_modal_engagement_error_' + option.index"
x-bind:class="option.classList"
x-on:click="option.onClick"
x-bind:disabled="option.isDisabled"
></button>
</template>
</div>
</div>
</div>
</div>
<script>
document.addEventListener("alpine:init", () => {
Alpine.store("modal_engagement_error", {
_open: false,
title: "Oops! Something Went Wrong",
bodyText: null,
options: [{"action":"dismiss","text":"Close"}],
closeable: true,
dismissible: true,
open(data) {
if (data) {
if (data.title) {
this.title = data.title;
}
if (data.bodyText) {
this.bodyText = data.bodyText;
}
if (data.options) {
this.options = data.options;
}
if (data.dismissAfterMs) {
setTimeout(() => this._open = false, data.dismissAfterMs);
}
}
this.updateOptions();
this._open = true;
},
close() {
// Manually click the buttons in which should run on dismiss.
// This is to keep the context. Calling this[option.action]() will not work.
for (let option of this.options) {
if (option.runOnDismiss) {
const element = document.querySelector('#button_modal_engagement_error_' + option.index);
element.click();
}
}
this._open = false;
},
updateOptions() {
const btnStyle = this.options.length === 2 ? ' btn-default' : '';
this.options = this.options.map((o, idx) => ({
...o,
index: idx,
classList: o.classList ? o.classList : (idx === 0 ? "btn btn-primary hov-brighten" : "btn hov-underline" + btnStyle),
onClick: function() {
if (o.action !== "dismiss") {
this[o.action]();
}
this.$store["modal_engagement_error"].close();
},
isDisabled: function() {
return Object.hasOwn(o, 'disabled') && this[o.disabled]();
},
canDisplay: function() {
return !Object.hasOwn(o, 'condition') || this[o.condition]();
}
}));
},
init() {
this.updateOptions();
}
});
});
</script>
<link rel="stylesheet" media="all" href="https://dz2cdn1.dzone.com/themes/dz20/ftl/footer/styles.css">
<div id="ftl-footer">
<div class="container-fluid footerOuter" style="padding-bottom: 90px;">
<div class="row">
<div class="col-md-12">
<div class="container">
<div class="row footer">
<div class="col-md-12 footerWidget">
<div class="row footerContainer footer">
<div class="left col-xs-12 col-sm-7">
<div class="col-xs-12 social-media-icons footer-mobile">
<ul class="icons-only">
<li class="rss-icon" id="rss-footer-1">
<a href="/pages/feeds" target="_blank" rel="noreferrer noopener">
<svg role="img" viewBox="0 0 24 24" class="w-4 h-4 mt-1.75 fill-current" aria-label="Follow our RSS feeds">
<title>RSS</title>
<path d="M19.199 24C19.199 13.467 10.533 4.8 0 4.8V0c13.165 0 24 10.835 24 24h-4.801zM3.291 17.415c1.814 0 3.293 1.479 3.293 3.295 0 1.813-1.485 3.29-3.301 3.29C1.47 24 0 22.526 0 20.71s1.475-3.294 3.291-3.295zM15.909 24h-4.665c0-6.169-5.075-11.245-11.244-11.245V8.09c8.727 0 15.909 7.184 15.909 15.91z"></path>
</svg>
</a>
</li>
<li class="twitter-icon">
<a href="https://twitter.com/DZoneInc" target="_blank" rel="noreferrer noopener">
<svg role="img" viewBox="0 0 24 24" aria-label="Follow us on X">
<title>X</title>
<path d="M14.234 10.162 22.977 0h-2.072l-7.591 8.824L7.251 0H.258l9.168 13.343L.258 24H2.33l8.016-9.318L16.749 24h6.993zm-2.837 3.299-.929-1.329L3.076 1.56h3.182l5.965 8.532.929 1.329 7.754 11.09h-3.182z"></path>
</svg>
</a>
</li>
<li class="facebook-icon">
<a href="https://www.facebook.com/DZoneInc" target="_blank" rel="noreferrer noopener">
<svg role="img" viewBox="0 0 24 24" aria-label="Follow us on Facebook">
<title>Facebook</title>
<path d="M9.101 23.691v-7.98H6.627v-3.667h2.474v-1.58c0-4.085 1.848-5.978 5.858-5.978.401 0 .955.042 1.468.103a8.68 8.68 0 0 1 1.141.195v3.325a8.623 8.623 0 0 0-.653-.036 26.805 26.805 0 0 0-.733-.009c-.707 0-1.259.096-1.675.309a1.686 1.686 0 0 0-.679.622c-.258.42-.374.995-.374 1.752v1.297h3.919l-.386 2.103-.287 1.564h-3.246v8.245C19.396 23.238 24 18.179 24 12.044c0-6.627-5.373-12-12-12s-12 5.373-12 12c0 5.628 3.874 10.35 9.101 11.647Z"></path>
</svg>
</a>
</li>
<li class="linkedin-icon">
<a href="https://www.linkedin.com/company/dzone/" target="_blank"
rel="noreferrer noopener">
<svg viewBox="0 0 24 25" fill="none" aria-label="Follow us on LinkedIn">
<path d="M6.20062 21.2143H1.84688V7.194H6.20062V21.2143ZM4.02141 5.2815C2.62922 5.2815 1.5 4.12838 1.5 2.73619C1.5 2.06747 1.76565 1.42614 2.2385 0.953285C2.71136 0.48043 3.35269 0.214783 4.02141 0.214783C4.69012 0.214783 5.33145 0.48043 5.80431 0.953285C6.27716 1.42614 6.54281 2.06747 6.54281 2.73619C6.54281 4.12838 5.413 5.2815 4.02141 5.2815ZM22.4953 21.2143H18.1509V14.3893C18.1509 12.7628 18.1181 10.6768 15.8873 10.6768C13.6237 10.6768 13.2769 12.444 13.2769 14.2721V21.2143H8.92781V7.194H13.1034V9.1065H13.1644C13.7456 8.00494 15.1655 6.84244 17.2838 6.84244C21.69 6.84244 22.5 9.744 22.5 13.5128V21.2143H22.4953Z" fill="currentColor"></path>
</svg>
</a>
</li>
</ul>
</div>
<div class="top-section col-xs-12">
<div class="col-xs-12 col-sm-6">
<p class="section-header">ABOUT US</p>
<ul class="link-group">
<li><a href="/pages/about" rel="noreferrer noopener">About DZone</a></li>
<li><a href="/cdn-cgi/l/email-protection#97e4e2e7e7f8e5e3d7f3edf8f9f2b9f4f8fa" rel="noreferrer noopener">Support and feedback</a></li>
<li><a href="/pages/dzone-community-research">Community research</a></li>
</ul>
</div>
<div class="col-xs-12 col-sm-6">
<p class="section-header">ADVERTISE</p>
<ul class="link-group">
<li><a href="https://advertise.dzone.com" target="_blank" rel="noreferrer noopener">Advertise with DZone</a></li>
</ul>
</div>
</div>
<div class="bottom-section col-xs-12">
<div class="col-xs-12 col-sm-6">
<p class="section-header">CONTRIBUTE ON DZONE</p>
<ul class="bottom-top-list link-group">
<li><a href="/articles/dzones-article-submission-guidelines">Article Submission Guidelines</a></li>
<li><a href="/pages/contribute" rel="noreferrer noopener">Become a Contributor</a></li>
<li><a href="/pages/core" rel="noreferrer noopener">Core Program</a></li>
<li><a href="/writers-zone" rel="noreferrer noopener">Visit the Writers' Zone</a></li>
</ul>
<p class="section-header">LEGAL</p>
<ul class="link-group">
<li><a href="https://technologyadvice.com/terms-conditions/" target="_blank" rel="noreferrer noopener">Terms of Service</a></li>
<li><a href="https://technologyadvice.com/privacy-policy/" target="_blank" rel="noreferrer noopener">Privacy Policy</a></li>
</ul>
</div>
<div class="col-xs-12 col-sm-6">
<p class="section-header">CONTACT US</p>
<ul class="link-group">
<li>3343 Perimeter Hill Drive</li>
<li>Suite 215</li>
<li>Nashville, TN 37211</li>
<li><a href="/cdn-cgi/l/email-protection#463533363629343206223c2928236825292b" rel="noreferrer noopener"><span class="__cf_email__" data-cfemail="01727471716e737541657b6e6f642f626e6c">[email&#160;protected]</span></a></li>
</ul>
</div>
</div>
</div>
<div class="right col-xs-12 col-sm-5">
<p class="connect-text">Let's be friends:</p>
<div class="col-xs-12 social-media-icons footer-wide">
<ul class="icons-only">
<li class="rss-icon" id="rss-footer-1">
<a href="/pages/feeds" target="_blank" rel="noreferrer noopener">
<svg role="img" viewBox="0 0 24 24" aria-label="Follow our RSS feeds">
<title>RSS</title>
<path d="M19.199 24C19.199 13.467 10.533 4.8 0 4.8V0c13.165 0 24 10.835 24 24h-4.801zM3.291 17.415c1.814 0 3.293 1.479 3.293 3.295 0 1.813-1.485 3.29-3.301 3.29C1.47 24 0 22.526 0 20.71s1.475-3.294 3.291-3.295zM15.909 24h-4.665c0-6.169-5.075-11.245-11.244-11.245V8.09c8.727 0 15.909 7.184 15.909 15.91z"></path>
</svg>
</a>
</li>
<li class="twitter-icon">
<a href="https://twitter.com/DZoneInc" target="_blank" rel="noreferrer noopener">
<svg role="img" viewBox="0 0 24 24" aria-label="Follow us on X">
<title>X</title>
<path d="M14.234 10.162 22.977 0h-2.072l-7.591 8.824L7.251 0H.258l9.168 13.343L.258 24H2.33l8.016-9.318L16.749 24h6.993zm-2.837 3.299-.929-1.329L3.076 1.56h3.182l5.965 8.532.929 1.329 7.754 11.09h-3.182z"></path>
</svg>
</a>
</li>
<li class="facebook-icon">
<a href="https://www.facebook.com/DZoneInc" target="_blank" rel="noreferrer noopener">
<svg role="img" viewBox="0 0 24 24" aria-label="Follow us on Facebook">
<title>Facebook</title>
<path d="M9.101 23.691v-7.98H6.627v-3.667h2.474v-1.58c0-4.085 1.848-5.978 5.858-5.978.401 0 .955.042 1.468.103a8.68 8.68 0 0 1 1.141.195v3.325a8.623 8.623 0 0 0-.653-.036 26.805 26.805 0 0 0-.733-.009c-.707 0-1.259.096-1.675.309a1.686 1.686 0 0 0-.679.622c-.258.42-.374.995-.374 1.752v1.297h3.919l-.386 2.103-.287 1.564h-3.246v8.245C19.396 23.238 24 18.179 24 12.044c0-6.627-5.373-12-12-12s-12 5.373-12 12c0 5.628 3.874 10.35 9.101 11.647Z"></path>
</svg>
</a>
</li>
<li class="linkedin-icon">
<a href="https://www.linkedin.com/company/dzone/" target="_blank"
rel="noreferrer noopener">
<svg viewBox="0 0 24 25" fill="none" aria-label="Follow us on LinkedIn">
<path d="M6.20062 21.2143H1.84688V7.194H6.20062V21.2143ZM4.02141 5.2815C2.62922 5.2815 1.5 4.12838 1.5 2.73619C1.5 2.06747 1.76565 1.42614 2.2385 0.953285C2.71136 0.48043 3.35269 0.214783 4.02141 0.214783C4.69012 0.214783 5.33145 0.48043 5.80431 0.953285C6.27716 1.42614 6.54281 2.06747 6.54281 2.73619C6.54281 4.12838 5.413 5.2815 4.02141 5.2815ZM22.4953 21.2143H18.1509V14.3893C18.1509 12.7628 18.1181 10.6768 15.8873 10.6768C13.6237 10.6768 13.2769 12.444 13.2769 14.2721V21.2143H8.92781V7.194H13.1034V9.1065H13.1644C13.7456 8.00494 15.1655 6.84244 17.2838 6.84244C21.69 6.84244 22.5 9.744 22.5 13.5128V21.2143H22.4953Z" fill="currentColor"></path>
</svg>
</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script>
const articleId = 3354652;
const likes = 2;
const assetDomain = 'https://dz2cdn1.dzone.com';
const codemirrorVars = {
modeURI: 'https://dz2cdn1.dzone.com/themes/dz20/lib/codemirror/mode/',
requiredScripts: [
'https://dz2cdn1.dzone.com/themes/dz20/lib/codemirror/lib/codemirror.js',
'https://dz2cdn1.dzone.com/themes/dz20/lib/codemirror/addon/mode/overlay.js',
'https://dz2cdn1.dzone.com/themes/dz20/lib/codemirror/addon/mode/multiplex.js',
'https://dz2cdn1.dzone.com/themes/dz20/lib/codemirror/mode/meta.js'
]
};
const gptTags = {
'zone': 'Performance',
'topicTag': 'Content delivery network,Domain Name System,Observability,Performance Monitor',
'company': '',
'siteSection': 'Zones',
'articleCategory': 'opinion',
'nodeID': '3354652',
'authorID': '4553056',
'publishYear': '2023',
'publishMonth': '07',
'jobRole': '',
'companySize': '',
'env': 'prod'
};
const minCommentChar = 10;
</script>
<script async>const width = window.innerWidth;
const metadata = {
'top': {
'position': 'top',
'slot': 'dz2_article_billboard_new',
},
'sponsorLogo': {
'position': 'zoneHomepage',
'slot': 'dz2_homepage_sponsor_logo',
'refreshable': false
},
'sidebar1': {
'position': 'sidebar',
'slot': 'dz2_article_halfpage_new',
'minWidthToShow': 1024
},
'topBumper': {
'position': 'top',
'slot': 'dz2_bumper_text_ad',
'minWidthToShow': 1024
},
'bottomBumper': {
'position': 'bottom',
'slot': 'dz2_bumper_text_ad',
'minWidthToShow': 1024
},
'bottom': {
'position': 'bottom',
'slot': 'dz2_article_bottom',
},
'bottomStickyFooter': {
'position': 'sticky',
'slot': 'dz2_sticky_footer_leaderboard',
},
'partner': {
'slot': 'dz2_partner_resource_link',
},
'branded': {
'slot': 'dz2_branded_content',
'refreshable': false
},
'topicBillboard': {
'position': ['top', 'zoneHomepage'],
'slot': 'dz2_topic_billboard',
},
'listPageSidebar': {
'position': 'sidebar',
'slot': 'dz2_list_page_sidebar',
'minWidthToShow': 1024
},
'topListPageLeaderboard2': {
'position': ['top', 'zoneList'],
'slot': 'dz2_list_page_leaderboard_2',
},
'bottomListPageLeaderboard2': {
'position': ['bottom', 'zoneList'],
'slot': 'dz2_list_page_leaderboard_2',
},
'homepageLeaderboard': {
'position': 'top',
'slot': 'dz2_homepage_leaderboard',
},
'homepageLeaderboard2': {
'position': 'bottom',
'slot': 'dz2_homepage_leaderboard_2',
},
'skybox': {
'position': 'above nav',
'slot': 'dz_skybox',
'refreshable': false
},
'inline': {
'position': 'inline',
'slot': 'dz2_inline-article-display',
}
};
var campaign = new URLSearchParams(window.location.search).get("adTargeting_campaign");
window.googletag = window.googletag || { cmd: [] };
if (campaign) {
window.googletag.cmd.push(function() {
window.googletag.setConfig({ targeting: { campaign }});
});
}
let lastHeader = null;
const topContainer = document.querySelector('#top-bumper-container');
const bottomContainer = document.querySelector('#bottom-bumper-container');
function GAM_getPersistentValue(key) {
const stored = JSON.parse(localStorage.getItem(key));
if (!stored) {
return null;
}
const { value, expiration } = stored;
if (expiration && Date.now() >= expiration) {
localStorage.removeItem(key);
return null;
}
return value;
}
function GAM_setPersistentValue(key, value, expiration) {
// 5 minutes from now
if (!expiration) {
expiration = Date.now() + 300000;
}
const storedValue = JSON.stringify({
value: value,
expiration: expiration
});
localStorage.setItem(key, storedValue);
return value;
}
function GAM_synchronousRequest(params) {
const xhr = new XMLHttpRequest();
xhr.open('GET', params.url, false);
xhr.setRequestHeader("Content-Type", "application/json");
if (typeof params.auth_header !== "undefined") {
xhr.setRequestHeader("Authorization", params.auth_header);
}
xhr.send(null);
if (xhr.status === 200) {
return xhr.responseText;
} else {
throw new Error('Request failed: ' + xhr.statusText);
}
}
function GAM_fetch_data(params) {
let stored_data = GAM_getPersistentValue(params.storage_key);
if (stored_data === null) {
try {
const response = GAM_synchronousRequest(params);
const data = JSON.parse(response);
// Store and expire after 30 minutes
return GAM_setPersistentValue(params.storage_key, data, Date.now() + 1800000);
} catch (error) {
console.error('Could not get ' + params.storage_key + ' data: ' + error);
return null;
}
} else {
return stored_data;
}
}
function GAM_setUpSixSenseTargeting() {
let meData = GAM_fetch_data({
url: "https://link.technologyadvice.com/_me",
storage_key: "ta_me_data"
});
let sixSenseData = GAM_fetch_data({
url: "https://epsilon.6sense.com/v3/company/details",
auth_header: "Token d20a1b0e892442270cbc4cb6801c0160d28af04c",
storage_key: "ta_6s_data"
});
function meDataIncludes(i) {
return meData.tags.includes(i);
}
if (typeof meData !== "undefined" && meData !== null) {
window.googletag.pubads().setTargeting("visitor_id", meData.vid);
window.googletag.pubads().setTargeting("user_agent", meData.user_agent);
var tags_mapping = {
"is_datacenter": ["site.is-datacenter"],
"is_suspected_bot": ["site.suspected-bad-bot", "site.bad-bot"],
"is_ta_user": ["site.is-ta-user"],
"is_crawler": ["site.user-agent-blocked"],
"is_ad_blocked": ["site.is-ad-blocked"],
};
for (var key in tags_mapping) {
if (tags_mapping[key].some(meDataIncludes)) {
window.googletag.pubads().setTargeting(key, 'true');
}
}
}
if (typeof sixSenseData !== "undefined" && sixSenseData !== null) {
var segment_ids = [];
if (sixSenseData.segments && sixSenseData.segments.ids && sixSenseData.segments.ids.length) {
sixSenseData.segments.ids.forEach(function (v) {
segment_ids.push(v.toString());
});
}
if (typeof segment_ids !== "undefined" && segment_ids.length > 0) {
window.googletag.pubads().setTargeting("segment_ids_6si", segment_ids);
}
}
}
if (width >= 1024 && (topContainer || bottomContainer)) {
// Dynamically create bumper ad slots for non-mobile devices.
// Prevents ugly dividers being rendered on empty ad slots (mobile)
const topBumper = document.createElement('div');
topBumper.id = 'div-gpt-ad-1435246566686-3';
topBumper.classList.add('article-bumper', 'article-bumper-top', 'dz2_bumper_text_ad');
topBumper.setAttribute('data-gpt-slot', 'topBumper');
topContainer.appendChild(topBumper);
const bottomBumper = document.createElement('div');
bottomBumper.id = 'div-gpt-ad-1435246566686-4';
bottomBumper.classList.add('article-bumper', 'article-bumper-bottom', 'dz2_bumper_text_ad');
bottomBumper.setAttribute('data-gpt-slot', 'bottomBumper');
bottomContainer.appendChild(bottomBumper);
}
if (gptTags.zone) {
gptTags.zone = gptTags.zone.replaceAll(/[\s/]/g, '_')
.replaceAll(/[^a-zA-Z0-9_]/g, '')
.toLowerCase();
}
makeAds();
function handleSkybox() {
const skybox = document.querySelector('div.skybox');
if (skybox) {
document.body.classList.add('skybox-auto-collapse');
// observe classlist changes for offsetting sticky ads
const observer = new MutationObserver((mutations) => {
mutations.forEach((mutation) => {
if (mutation.type === 'attributes' && mutation.attributeName === 'class') {
let offset = 0;
if (!document.body.classList.contains('skybox-closed') && (
document.body.classList.contains('ccad-skybox-manualcollapse')
|| document.body.classList.contains('ccad-skybox-manualexpand')
)) {
offset = skybox.getBoundingClientRect().height;
}
let eligibleAds = [
{ element: document.querySelector('.content-right-images'), offset: 108 },
{ element: document.querySelector('.trending-sidebar'), offset: 88 },
{ element: document.querySelector('.trending'), offset: 88 }
];
for (let ad of eligibleAds) {
if (ad.element) {
ad.element.style.top = (ad.offset + offset) + 'px';
}
}
}
});
});
observer.observe(document.body, { attributes: true });
}
}
function isHeaderEligible(header) {
const range = document.createRange();
range.setStartAfter(lastHeader);
range.setEndBefore(header);
return range.toString().trim().length >= 600;
}
function placeInlineAds() {
const excludedContent = document.querySelectorAll('#ftl-article.branded-content, #ftl-article.sponsored');
if (excludedContent.length > 0) {
return;
}
const headers = Array.from(document.querySelectorAll('.content-html h2')).splice(1);
let globalIndex = 12;
for (let i = 0; i < headers.length; i++) {
if (!lastHeader || isHeaderEligible(headers[i])) {
const element = document.createElement('div');
element.id = 'div-gpt-ad-1435246566686-' + globalIndex;
element.classList.add('inline-display', 'dz2_inline-article-display');
element.setAttribute('data-gpt-slot', 'inline');
headers[i].before(element);
lastHeader = element;
globalIndex++;
}
}
}
function makeAds() {
handleSkybox();
placeInlineAds();
const script = document.createElement('script');
script.src = 'https://i6ByW9Zmz4ncxhHkb.ay.delivery/manager/i6ByW9Zmz4ncxhHkb';
script.type = 'text/javascript';
script.referrerPolicy = 'no-referrer-when-downgrade';
document.head.appendChild(script);
window.googletag.cmd.push(function() {
const containers = document.querySelectorAll('div[data-gpt-slot]');
for (let container of containers) {
const div = container.getAttribute('data-gpt-slot');
const meta = metadata[div];
if (meta.minWidthToShow && width < meta.minWidthToShow) {
continue;
}
window.googletag.pubads().setTargeting('hostname', window.location.hostname);
Object.keys(gptTags).forEach(function(key) {
window.googletag.pubads().setTargeting(key, gptTags[key]);
});
window.googletag.pubads().addEventListener('slotRenderEnded', (event) => {
window.requestAnimationFrame(() => {
var slotId = event.slot.getSlotElementId();
if (!slotId.includes('__ayManagerEnv__')) {
return;
}
var className = slotId.split('__ayManagerEnv__')[0];
var slotName = className.replace('dz2_', '').replace('dz_', '').replace(/_\d+$/, '');
var unitName = meta.slot.replace('dz2_', '').replace('dz_', '').replace(/_\d+$/, '');
if (slotName !== unitName) {
return;
}
var elem = document.getElementById(slotId);
if (!elem) {
console.warn('Ad element missing', slotId);
return;
}
// Ad unit did not fill, collapse slot
if (event.isEmpty && elem.parentElement) {
elem.parentElement.style.display = 'none';
}
});
});
}
GAM_setUpSixSenseTargeting();
});
}
</script>
<script async>// InMobi Choice. Consent Manager Tag v3.0 (for TCF 2.2)
!function(){var e=window.location.hostname,t=document.createElement("script"),n=document.getElementsByTagName("script")[0],a="https://cmp.inmobi.com".concat("/choice/","vPn77x7pBG57Y","/","dzone.com","/choice.js?tag_version=V3"),p=0;t.async=!0,t.type="text/javascript",t.src=a,n.parentNode.insertBefore(t,n),function(){for(var e,t="__tcfapiLocator",n=[],a=window;a;){try{if(a.frames[t]){e=a;break}}catch(e){}if(a===window.top)break;a=a.parent}e||(!function e(){var n=a.document,p=!!a.frames[t];if(!p)if(n.body){var s=n.createElement("iframe");s.style.cssText="display:none",s.name=t,n.body.appendChild(s)}else setTimeout(e,5);return!p}(),a.__tcfapi=function(){var e,t=arguments;if(!t.length)return n;if("setGdprApplies"===t[0])t.length>3&&2===t[2]&&"boolean"==typeof t[3]&&(e=t[3],"function"==typeof t[2]&&t[2]("set",!0));else if("ping"===t[0]){var a={gdprApplies:e,cmpLoaded:!1,cmpStatus:"stub"};"function"==typeof t[2]&&t[2](a)}else"init"===t[0]&&"object"==typeof t[3]&&(t[3]=Object.assign(t[3],{tag_version:"V3"})),n.push(t)},a.addEventListener("message",(function(e){var t="string"==typeof e.data,n={};try{n=t?JSON.parse(e.data):e.data}catch(e){}var a=n.__tcfapiCall;a&&window.__tcfapi(a.command,a.version,(function(n,p){var s={__tcfapiReturn:{returnValue:n,success:p,callId:a.callId}};t&&(s=JSON.stringify(s)),e&&e.source&&e.source.postMessage&&e.source.postMessage(s,"*")}),a.parameter)}),!1))}(),function(){const e=["2:tcfeuv2","6:uspv1","7:usnatv1","8:usca","9:usvav1","10:uscov1","11:usutv1","12:usctv1"];window.__gpp_addFrame=function(e){if(!window.frames[e])if(document.body){var t=document.createElement("iframe");t.style.cssText="display:none",t.name=e,document.body.appendChild(t)}else window.setTimeout(window.__gpp_addFrame,10,e)},window.__gpp_stub=function(){var t=arguments;if(__gpp.queue=__gpp.queue||[],__gpp.events=__gpp.events||[],!t.length||1==t.length&&"queue"==t[0])return __gpp.queue;if(1==t.length&&"events"==t[0])return __gpp.events;var n=t[0],a=t.length>1?t[1]:null,p=t.length>2?t[2]:null;if("ping"===n)a({gppVersion:"1.1",cmpStatus:"stub",cmpDisplayStatus:"hidden",signalStatus:"not ready",supportedAPIs:e,cmpId:10,sectionList:[],applicableSections:[-1],gppString:"",parsedSections:{}},!0);else if("addEventListener"===n){"lastId"in __gpp||(__gpp.lastId=0),__gpp.lastId++;var s=__gpp.lastId;__gpp.events.push({id:s,callback:a,parameter:p}),a({eventName:"listenerRegistered",listenerId:s,data:!0,pingData:{gppVersion:"1.1",cmpStatus:"stub",cmpDisplayStatus:"hidden",signalStatus:"not ready",supportedAPIs:e,cmpId:10,sectionList:[],applicableSections:[-1],gppString:"",parsedSections:{}}},!0)}else if("removeEventListener"===n){for(var i=!1,o=0;o<__gpp.events.length;o++)if(__gpp.events[o].id==p){__gpp.events.splice(o,1),i=!0;break}a({eventName:"listenerRemoved",listenerId:p,data:i,pingData:{gppVersion:"1.1",cmpStatus:"stub",cmpDisplayStatus:"hidden",signalStatus:"not ready",supportedAPIs:e,cmpId:10,sectionList:[],applicableSections:[-1],gppString:"",parsedSections:{}}},!0)}else"hasSection"===n?a(!1,!0):"getSection"===n||"getField"===n?a(null,!0):__gpp.queue.push([].slice.apply(t))},window.__gpp_msghandler=function(e){var t="string"==typeof e.data;try{var n=t?JSON.parse(e.data):e.data}catch(e){n=null}if("object"==typeof n&&null!==n&&"__gppCall"in n){var a=n.__gppCall;window.__gpp(a.command,(function(n,p){var s={__gppReturn:{returnValue:n,success:p,callId:a.callId}};e.source.postMessage(t?JSON.stringify(s):s,"*")}),"parameter"in a?a.parameter:null,"version"in a?a.version:"1.1")}},"__gpp"in window&&"function"==typeof window.__gpp||(window.__gpp=window.__gpp_stub,window.addEventListener("message",window.__gpp_msghandler,!1),window.__gpp_addFrame("__gppLocator"))}();var s=function(){var e=arguments;typeof window.__uspapi!==s&&setTimeout((function(){void 0!==window.__uspapi&&window.__uspapi.apply(window.__uspapi,e)}),500)};if(void 0===window.__uspapi){window.__uspapi=s;var i=setInterval((function(){p++,window.__uspapi===s&&p<3?console.warn("USP is not accessible"):clearInterval(i)}),6e3)}}();
</script>
<script async>
(function(w, d, s, l, i) {
w[l] = w[l] || [];
w[l].push({'gtm.start': new Date().getTime(), event: 'gtm.js'});
var f = d.getElementsByTagName(s)[0], j = d.createElement(s), dl = l != 'dataLayer' ? '&l=' + l : '';
j.async = true;
j.src = 'https://www.googletagmanager.com/gtm.js?id=' + i + dl;
f.parentNode.insertBefore(j,f);
})(window, document, 'script', 'dataLayer', 'GTM-K25QL22');
</script>
<script>
window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
ga('create', 'UA-410289-1', 'auto');
ga('require', 'linkid', 'linkid.js');
ga('require', 'GTM-TSD9TZP');
ga('set', 'siteSpeedSampleRate', 25);
</script>
<script async src="https://www.google-analytics.com/analytics.js"></script>
<script async>var analytics = {
'dimension1': 'Performance',
'dimension2': 'article/opinion',
'dimension3': '2023-07-12',
'dimension4': '0',
'dimension5': '',
'dimension7': 'Content delivery network, Domain Name System, Observability, Performance Monitor',
'dimension8': 'Orhillel',
'dimension9': 'undefined',
'dimension10': 'Green Lamp'
};
if (window.ga) {
Object.keys(analytics).forEach(function(key) {
window.ga('set', key, analytics[key]);
});
window.ga('send', 'pageview');
}</script>
<script src="https://dz2cdn1.dzone.com/themes/dz20/lib/static/jquery/jquery.min.js"></script>
<script async src="https://dz2cdn1.dzone.com/themes/dz20/lib/static/bootstrap/bootstrap.min.js"></script>
<script>
function loadScript(src) {
return new Promise(function (resolve, reject) {
const s = document.createElement('script');
s.src = src;
s.onload = resolve;
s.onerror = reject;
document.head.appendChild(s);
});
}
function loadStyle(href) {
const link = document.createElement('link');
link.rel = 'stylesheet';
link.href = href;
document.head.appendChild(link);
}
function loadScriptsSync(deferred) {
var p = Promise.resolve();
for (var i = 0; i < deferred.length; i++) {
let script = deferred[i];
p = p.then(function() {
return loadScript(script);
});
}
return p;
}
function loadStyles() {
const deferred = [
'https://dz2cdn1.dzone.com/themes/dz20/lib/codemirror/lib/codemirror.css',
'https://dz2cdn1.dzone.com/themes/dz20/ftl/comments/styles.css',
'https://dz2cdn1.dzone.com/themes/dz20/lib/froala3/css/froala_editor.pkgd.min.css',
'https://dz2cdn1.dzone.com/themes/dz20/lib/froala3/css/themes/gray.min.css',
'https://dz2cdn1.dzone.com/themes/dz20/ftl/article/mini-profile.css'
];
for (var i = 0; i < deferred.length; i++) {
loadStyle(deferred[i]);
}
}
window.addEventListener('load', function(_event) {
loadStyles();
loadScriptsSync([
'https://dz2cdn1.dzone.com/themes/dz20/lib/lazysizes.min.js',
'https://dz2cdn1.dzone.com/themes/dz20/ftl/article/codeblocks.js',
'https://dz2cdn1.dzone.com/themes/dz20/ftl/article/activity-bar.js',
'https://dz2cdn1.dzone.com/themes/dz20/lib/froala3/js/froala_editor.pkgd.min.js',
'https://dz2cdn1.dzone.com/themes/dz20/ftl/froala/content.js',
'https://dz2cdn1.dzone.com/themes/dz20/ftl/comments/content.js',
'https://dz2cdn1.dzone.com/themes/dz20/ftl/article/content.js'
]);
});
</script>
</body>
</html>