436 lines
102 KiB
HTML
436 lines
102 KiB
HTML
<!DOCTYPE html>
|
||
<html lang="en" dir="ltr">
|
||
<head>
|
||
<meta charset="utf-8" />
|
||
<meta name="norton-safeweb-site-verification" content="24usqpep0ejc5w6hod3dulxwciwp0djs6c6ufp96av3t4whuxovj72wfkdjxu82yacb7430qjm8adbd5ezlt4592dq4zrvadcn9j9n-0btgdzpiojfzno16-fnsnu7xd" />
|
||
|
||
|
||
<link rel="preconnect" href="https://substackcdn.com" />
|
||
|
||
|
||
|
||
<title data-rh="true">The Rule of 5 Errors - by Ross Brodbeck</title>
|
||
|
||
<meta data-rh="true" property="og:type" content="article"/><meta data-rh="true" property="og:title" content="The Rule of 5 Errors"/><meta data-rh="true" name="twitter:title" content="The Rule of 5 Errors"/><meta data-rh="true" name="description" content="Why request volume matters when building an SLI."/><meta data-rh="true" property="og:description" content="Why request volume matters when building an SLI."/><meta data-rh="true" name="twitter:description" content="Why request volume matters when building an SLI."/><meta data-rh="true" property="og:image" content="https://substackcdn.com/image/fetch/$s_!pQvr!,w_1200,h_675,c_fill,f_jpg,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png"/><meta data-rh="true" name="twitter:image" content="https://substackcdn.com/image/fetch/$s_!15Lm!,f_auto,q_auto:best,fl_progressive:steep/https%3A%2F%2Fhross.substack.com%2Fapi%2Fv1%2Fpost_preview%2F144529081%2Ftwitter.jpg%3Fversion%3D4"/><meta data-rh="true" name="twitter:card" content="summary_large_image"/><meta data-rh="true" property="article:modified_time" content="2024-05-13T13:43:44.846Z"/>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<style>
|
||
@layer legacy, pencraftReset, pencraft;
|
||
</style>
|
||
|
||
|
||
<link rel="preload" as="style" href="https://substackcdn.com/bundle/theme/main.06a4c4c291d4583811c7.css" />
|
||
|
||
|
||
|
||
<link rel="preload" as="font" href="https://fonts.gstatic.com/s/spectral/v13/rnCr-xNNww_2s0amA9M5knjsS_ul.woff2" crossorigin />
|
||
|
||
|
||
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/11100.cee9fbee.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/86118.c25b9f67.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/93519.6640a5b2.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/42118.cba90b72.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/39522.25128f14.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/47358.668d8a3c.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/94881.cb76fe04.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/27386.72f00430.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/76768.f15fc605.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/41932.97d2663c.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/48409.0588981c.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/32552.313415d5.css" />
|
||
|
||
<link rel="stylesheet" type="text/css" href="https://substackcdn.com/bundle/static/css/27313.92c631cb.css" />
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0, viewport-fit=cover" />
|
||
<meta name="author" content="Ross Brodbeck" />
|
||
<meta property="og:url" content="https://hross.substack.com/p/the-rule-of-5-errors" />
|
||
|
||
|
||
<link rel="canonical" href="https://hross.substack.com/p/the-rule-of-5-errors" />
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<link rel="shortcut icon" href="https://substackcdn.com/icons/substack/favicon.ico" sizes="32x32">
|
||
|
||
|
||
|
||
<link rel="icon" href="https://substackcdn.com/icons/substack/icon.svg" type="image/svg+xml">
|
||
|
||
|
||
|
||
<link rel="apple-touch-icon" href="https://substackcdn.com/icons/substack/apple-touch-icon.png">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<link rel="alternate" type="application/rss+xml" href="/feed" title="software + caffeine = blog"/>
|
||
|
||
|
||
|
||
|
||
<style>
|
||
@font-face{font-family:'Spectral';font-style:italic;font-weight:400;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCt-xNNww_2s0amA9M8on7mTNmnUHowCw.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:'Spectral';font-style:italic;font-weight:400;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCt-xNNww_2s0amA9M8onXmTNmnUHowCw.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:'Spectral';font-style:italic;font-weight:400;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCt-xNNww_2s0amA9M8onTmTNmnUHowCw.woff2) format('woff2');unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:'Spectral';font-style:italic;font-weight:400;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCt-xNNww_2s0amA9M8onrmTNmnUHo.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:'Spectral';font-style:normal;font-weight:400;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCr-xNNww_2s0amA9M9knjsS_ulYHs.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:'Spectral';font-style:normal;font-weight:400;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCr-xNNww_2s0amA9M2knjsS_ulYHs.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:'Spectral';font-style:normal;font-weight:400;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCr-xNNww_2s0amA9M3knjsS_ulYHs.woff2) format('woff2');unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:'Spectral';font-style:normal;font-weight:400;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCr-xNNww_2s0amA9M5knjsS_ul.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:'Spectral';font-style:normal;font-weight:600;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCs-xNNww_2s0amA9vmtm3FafaPWnIIMrY.woff2) format('woff2');unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:'Spectral';font-style:normal;font-weight:600;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCs-xNNww_2s0amA9vmtm3OafaPWnIIMrY.woff2) format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:'Spectral';font-style:normal;font-weight:600;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCs-xNNww_2s0amA9vmtm3PafaPWnIIMrY.woff2) format('woff2');unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:'Spectral';font-style:normal;font-weight:600;font-display:fallback;src:url(https://fonts.gstatic.com/s/spectral/v13/rnCs-xNNww_2s0amA9vmtm3BafaPWnII.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
|
||
|
||
</style>
|
||
|
||
|
||
|
||
|
||
|
||
<style data-pub-theme-prefix>:root{--color_theme_bg_pop:#FF6B00;--background_pop:#FF6B00;--cover_bg_color:#FFFFFF;--cover_bg_color_secondary:#f0f0f0;--background_pop_darken:#e66000;--print_on_pop:#ffffff;--color_theme_bg_pop_darken:#e66000;--color_theme_print_on_pop:#ffffff;--color_theme_bg_pop_20:rgba(255, 107, 0, 0.2);--color_theme_bg_pop_30:rgba(255, 107, 0, 0.3);--print_pop:#ff6b00;--color_theme_accent:#ff6b00;--cover_print_primary:#363737;--cover_print_secondary:#757575;--cover_print_tertiary:#b6b6b6;--cover_border_color:#ff6b00;--home_hero:newspaper;--home_posts:list;--background_contrast_1:#f0f0f0;--background_contrast_2:#dddddd;--background_contrast_3:#b7b7b7;--background_contrast_4:#929292;--background_contrast_5:#515151;--color_theme_detail:#e6e6e6;--background_contrast_pop:rgba(255, 107, 0, 0.4);--color_theme_bg_contrast_pop:rgba(255, 107, 0, 0.4);--theme_bg_is_dark:0;--background_pop_rgb:255, 107, 0;--color_theme_bg_pop_rgb:255, 107, 0;--color_theme_accent_rgb:255, 107, 0;}</style>
|
||
|
||
|
||
<link rel="stylesheet" href="https://substackcdn.com/bundle/theme/main.06a4c4c291d4583811c7.css" />
|
||
|
||
|
||
<style data-pub-theme-postfix></style>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</head>
|
||
|
||
<body class="">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div id="entry">
|
||
<div id="main" style="--post-preview-border-radius:var(--border-radius-xs);" class="main typography use-theme-bg"><div class="pencraft pc-display-contents pc-reset pubTheme-yiXxQA"><div data-testid="navbar" class="main-menu"><div class="mainMenuContent-DME8DR"><div style="position:relative;height:71px;" class="pencraft pc-display-flex pc-gap-12 pc-paddingLeft-20 pc-paddingRight-20 pc-justifyContent-space-between pc-alignItems-center pc-reset border-bottom-detail-k1F6C4 topBar-pIF0J1"><div style="flex-basis:0px;flex-grow:1;" class="logoContainer-p12gJb"></div><div style="flex-grow:0;" class="titleContainer-DJYq5v"><h1 class="pencraft pc-reset font-pub-headings-FE5byy reset-IxiVJZ title-oOnUGd"><a href="/" class="pencraft pc-display-contents pc-reset">software + caffeine = blog</a></h1></div><div style="flex-basis:0px;flex-grow:1;" class="pencraft pc-display-flex pc-justifyContent-flex-end pc-alignItems-center pc-reset buttonsContainerContainer-ThaN_w"><div class="buttonsContainer-SJBuep"><div class="pencraft pc-display-flex pc-gap-8 pc-justifyContent-flex-end pc-alignItems-center pc-reset navbar-buttons"><div class="pencraft pc-display-flex pc-gap-4 pc-reset"><span data-state="closed"><button tabindex="0" type="button" aria-label="Search" class="pencraft pc-reset pencraft iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_md-gCDS3o priority_tertiary-rlke8z"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-search"><circle cx="11" cy="11" r="8"></circle><path d="m21 21-4.3-4.3"></path></svg></button></span><button tabindex="0" type="button" aria-label="Share Publication" id="radix-P0-4" aria-haspopup="menu" aria-expanded="false" data-state="closed" class="pencraft pc-reset pencraft iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_md-gCDS3o priority_tertiary-rlke8z"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-share"><path d="M4 12v8a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2v-8"></path><polyline points="16 6 12 2 8 6"></polyline><line x1="12" x2="12" y1="2" y2="15"></line></svg></button></div><button tabindex="0" type="button" data-testid="noncontributor-cta-button" class="pencraft pc-reset pencraft buttonBase-GK1x3M buttonText-X0uSmG buttonStyle-r7yGCK priority_primary-RfbeYt size_md-gCDS3o">Subscribe</button><button tabindex="0" data-native="true" type="button" data-href="https://substack.com/sign-in?redirect=%2Fp%2Fthe-rule-of-5-errors&for_pub=hross" class="pencraft pc-reset pencraft buttonBase-GK1x3M buttonText-X0uSmG buttonStyle-r7yGCK priority_tertiary-rlke8z size_md-gCDS3o">Sign in</button></div></div></div></div></div><div style="height:72px;"></div></div></div><div><script nonce="rPMlCqB6HON3nxLwQDKoKw" type="application/ld+json">{"@context":"https://schema.org","@type":"NewsArticle","url":"https://hross.substack.com/p/the-rule-of-5-errors","mainEntityOfPage":"https://hross.substack.com/p/the-rule-of-5-errors","headline":"The Rule of 5 Errors","description":"Why request volume matters when building an SLI.","image":[{"@type":"ImageObject","url":"https://substackcdn.com/image/fetch/$s_!pQvr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png"}],"datePublished":"2024-05-13T13:43:44+00:00","dateModified":"2024-05-13T13:43:44+00:00","isAccessibleForFree":true,"author":[{"@type":"Person","name":"Ross Brodbeck","url":"https://substack.com/@hross","description":"Working at GitHub in SRE. I sometimes manage software teams and write about it.","identifier":"user:11634007","sameAs":["https://twitter.com/hross"],"image":{"@type":"ImageObject","contentUrl":"https://substackcdn.com/image/fetch/$s_!zA8r!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg","thumbnailUrl":"https://substackcdn.com/image/fetch/$s_!zA8r!,w_128,h_128,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg"}}],"publisher":{"@type":"Organization","name":"software + caffeine = blog","url":"https://hross.substack.com","description":"Software development and SRE learned from making lots of mistakes.","identifier":"pub:734663","sameAs":["https://twitter.com/hross"]},"interactionStatistic":[{"@type":"InteractionCounter","interactionType":"https://schema.org/LikeAction","userInteractionCount":3},{"@type":"InteractionCounter","interactionType":"https://schema.org/ShareAction","userInteractionCount":0},{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0}]}</script><script nonce="rPMlCqB6HON3nxLwQDKoKw" type="application/ld+json">{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"software + caffeine = blog","item":"https://hross.substack.com"},{"@type":"ListItem","position":2,"name":"The Rule of 5 Errors","item":"https://hross.substack.com/p/the-rule-of-5-errors"}]}</script><div aria-label="Post" role="main" class="single-post-container"><div class="container"><div class="single-post"><div class="pencraft pc-display-contents pc-reset pubTheme-yiXxQA"><article class="typography newsletter-post post"><div role="region" aria-label="Post header" class="post-header"><h1 dir="auto" class="post-title published title-X77sOw">The Rule of 5 Errors</h1><h3 dir="auto" class="subtitle subtitle-HEEcLo">Why request volume matters when building an SLI.</h3><div aria-label="Post UFI" role="region" class="pencraft pc-display-flex pc-flexDirection-column pc-paddingBottom-16 pc-reset"><div class="pencraft pc-display-flex pc-paddingTop-16 pc-paddingBottom-16 pc-justifyContent-space-between pc-alignItems-center pc-reset"><div class="pencraft pc-display-flex pc-gap-12 pc-alignItems-center pc-reset byline-wrapper"><div class="pencraft pc-display-flex pc-reset"><div class="pencraft pc-display-flex pc-flexDirection-row pc-gap-8 pc-alignItems-center pc-justifyContent-flex-start pc-reset"><div style="--scale:36px;--offset:9px;--border-width:4.5px;" class="pencraft pc-display-flex pc-flexDirection-row pc-alignItems-center pc-justifyContent-flex-start pc-reset ltr-qDBmby"><a href="https://substack.com/@hross" aria-label="View Ross Brodbeck's profile" class="pencraft pc-display-contents pc-reset"><div style="--scale:36px;" tabindex="0" class="pencraft pc-display-flex pc-width-36 pc-height-36 pc-justifyContent-center pc-alignItems-center pc-position-relative pc-reset bg-secondary-UUD3_J flex-auto-j3S2WA animate-XFJxE4 outline-detail-vcQLyr pc-borderRadius-full overflow-hidden-WdpwT6 sizing-border-box-DggLA4 pressable-sm-YIJFKJ showFocus-sk_vEm container-TAtrWj interactive-UkK0V6 avatar-u8q6xB last-JfNEJ_"><div style="--scale:36px;" title="Ross Brodbeck" class="pencraft pc-display-flex pc-width-36 pc-height-36 pc-justifyContent-center pc-alignItems-center pc-position-relative pc-reset bg-secondary-UUD3_J flex-auto-j3S2WA outline-detail-vcQLyr pc-borderRadius-full overflow-hidden-WdpwT6 sizing-border-box-DggLA4 container-TAtrWj"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!zA8r!,w_36,h_36,c_fill,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg 1x, https://substackcdn.com/image/fetch/$s_!zA8r!,w_72,h_72,c_fill,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg 2x, https://substackcdn.com/image/fetch/$s_!zA8r!,w_108,h_108,c_fill,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg 3x"/><img src="https://substackcdn.com/image/fetch/$s_!zA8r!,w_36,h_36,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg" alt="Ross Brodbeck's avatar" srcset="https://substackcdn.com/image/fetch/$s_!zA8r!,w_36,h_36,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg 1x, https://substackcdn.com/image/fetch/$s_!zA8r!,w_72,h_72,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg 2x, https://substackcdn.com/image/fetch/$s_!zA8r!,w_108,h_108,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg 3x" width="36" height="36" draggable="false" class="img-OACg1c object-fit-cover-u4ReeV pencraft pc-reset"/></picture></div></div></a></div></div></div><div class="pencraft pc-display-flex pc-flexDirection-column pc-reset"><div class="pencraft pc-reset color-primary-zABazT line-height-20-t4M0El font-meta-MWBumP size-11-NuY2Zx weight-medium-fw81nC transform-uppercase-yKDgcq reset-IxiVJZ meta-EgzBVA"><span style="min-width:0;" data-state="closed"><a href="https://substack.com/@hross" class="pencraft pc-reset decoration-hover-underline-ClDVRM reset-IxiVJZ">Ross Brodbeck</a></span></div><div class="pencraft pc-display-flex pc-gap-4 pc-reset"><div class="pencraft pc-reset color-secondary-ls1g8s line-height-20-t4M0El font-meta-MWBumP size-11-NuY2Zx weight-medium-fw81nC transform-uppercase-yKDgcq reset-IxiVJZ meta-EgzBVA"><time datetime="2024-05-13T13:43:44.772Z" title="2024-05-13T13:43:44.772Z">May 13, 2024</time></div></div></div></div></div><div class="pencraft pc-display-flex pc-gap-16 pc-justifyContent-space-between pc-alignItems-center pc-reset flex-grow-rzmknG post-ufi"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><div class="like-button-container post-ufi-button style-button"><button tabindex="0" type="button" aria-label="Like (3)" aria-pressed="false" class="pencraft pc-reset pencraft post-ufi-button style-button has-label with-border"><svg aria-hidden="true" style="height:20px;width:20px;" width="20" height="20" viewBox="0 0 24 24" fill="#000000" stroke-width="2" stroke="#000" xmlns="http://www.w3.org/2000/svg" class="icon"><g><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-heart"><path d="M19 14c1.49-1.46 3-3.21 3-5.5A5.5 5.5 0 0 0 16.5 3c-1.76 0-3 .5-4.5 2-1.5-1.5-2.74-2-4.5-2A5.5 5.5 0 0 0 2 8.5c0 2.3 1.5 4.05 3 5.5l7 7Z"></path></svg></g></svg><div class="label">3</div></button></div><button tabindex="0" type="button" id="radix-P0-27" aria-haspopup="menu" aria-expanded="false" data-state="closed" class="pencraft pc-reset pencraft post-ufi-button style-button no-label with-border"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="2" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg" class="icon"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button></div><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft post-ufi-button style-button has-label with-border"><div class="label">Share</div></button></div></div></div></div><div class="visibility-check"></div><div><div class="dt-post-body"><div class="available-content"><div dir="auto" class="body markup"><p><span>All credit for the rule of 5 errors goes to </span><a href="https://www.usenix.org/conference/srecon22emea/presentation/palcuie">Alex Palcuie during his SRECon talk in 2022</a><span>. It has been one of the most useful ways to frame error rate that I have seen. I have found myself referring to it multiple times and there isn’t a standalone post on it, so here we go.</span></p><p><span>The </span><em><strong>Rule of 5 Errors</strong></em><span> is simply a heuristic that says we don’t start tracking errors on a given metric unless it has 5 more or more errors over a given time frame.</span></p><p>To make this easier to visualize, here is a table that illustrates what error rate percentages look like for 5 errors at different request volumes:</p><div class="captioned-image-container"><figure><a target="_blank" href="https://substackcdn.com/image/fetch/$s_!pQvr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png" data-component-name="Image2ToDOM" class="image-link image2 is-viewable-img can-restack"><div class="image2-inset"><picture><source type="image/webp" srcset="https://substackcdn.com/image/fetch/$s_!pQvr!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 424w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 848w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 1272w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 1456w" sizes="100vw"/><img src="https://substackcdn.com/image/fetch/$s_!pQvr!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png" width="1456" height="477" data-attrs="{"src":"https://substack-post-media.s3.amazonaws.com/public/images/584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png","srcNoWatermark":null,"fullscreen":null,"imageSize":null,"height":477,"width":1456,"resizeWidth":null,"bytes":156461,"alt":null,"title":null,"type":"image/png","href":null,"belowTheFold":false,"topImage":true,"internalRedirect":null,"isProcessing":false,"align":null,"offset":false}" alt srcset="https://substackcdn.com/image/fetch/$s_!pQvr!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 424w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 848w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 1272w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 1456w" sizes="100vw" fetchpriority="high" class="sizing-normal"/></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption"><a href="https://docs.google.com/spreadsheets/d/1kzFIvxtB5s7Y6Wk4H4qeLvr_5OPN7bKh-dxOcxwvAzw/edit#gid=0">Here is a Google Sheet with this data because substack doesn’t like tables.</a></figcaption></figure></div><p>I have found this chart to be an awesome illustration of the concept that low volume data tends to be noisy. Yes, that sounds intuitive, but this chart gets the point across way better than words will.</p><p><span> For example, looking at the table above, if you only get 100 requests, </span><strong>5 errors will represent a 5% error rate</strong><span>, something you may well alert on if you are trying for 99% availability. Monitoring and alerting on that data volume will quickly cause </span><a href="https://www.atlassian.com/incident-management/on-call/alert-fatigue#What-is-alert-fatigue?">alert fatigue</a><span>.</span></p><p>In general you can use this chart to evaluate whether the minimum data volume for any given metric is reasonable to alert on. </p><p><span>My general rule of thumb is that if you don’t have 1,000 or more requests during low periods (for example, the weekend) then you may want to reconsider how you are building the metric or turn off the alerting when you have less than that volume. In Datadog, you can implement a rule like that using </span><a href="https://docs.datadoghq.com/monitors/types/composite/">composite monitors</a><span>.</span></p></div></div><div class="visibility-check"></div></div><div class="post-footer"><div class="pencraft pc-display-flex pc-gap-16 pc-paddingTop-16 pc-paddingBottom-16 pc-justifyContent-space-between pc-alignItems-center pc-reset flex-grow-rzmknG border-top-detail-themed-k9TZAY border-bottom-detail-themed-Ua9186 post-ufi"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><div class="like-button-container post-ufi-button style-button"><button tabindex="0" type="button" aria-label="Like (3)" aria-pressed="false" class="pencraft pc-reset pencraft post-ufi-button style-button has-label with-border"><svg aria-hidden="true" style="height:20px;width:20px;" width="20" height="20" viewBox="0 0 24 24" fill="#000000" stroke-width="2" stroke="#000" xmlns="http://www.w3.org/2000/svg" class="icon"><g><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-heart"><path d="M19 14c1.49-1.46 3-3.21 3-5.5A5.5 5.5 0 0 0 16.5 3c-1.76 0-3 .5-4.5 2-1.5-1.5-2.74-2-4.5-2A5.5 5.5 0 0 0 2 8.5c0 2.3 1.5 4.05 3 5.5l7 7Z"></path></svg></g></svg><div class="label">3</div></button></div><button tabindex="0" type="button" id="radix-P0-56" aria-haspopup="menu" aria-expanded="false" data-state="closed" class="pencraft pc-reset pencraft post-ufi-button style-button no-label with-border"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="2" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg" class="icon"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button></div><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft post-ufi-button style-button has-label with-border"><div class="label">Share</div></button></div></div></div></div></article></div></div></div><div class="pencraft pc-display-contents pc-reset pubTheme-yiXxQA"><div class="single-post-section"><div class="container"><div class="visibility-check"></div><div style="margin-left:-8px;margin-right:-8px;" aria-label="Top Posts Footer" role="region" class="pencraft pc-paddingTop-24 pc-paddingBottom-24 pc-reset"><div class="portable-archive empty-list"><div aria-label="Archive sort tabs" role="navigation" class="pencraft pc-display-flex pc-gap-12 pc-paddingLeft-8 pc-paddingRight-8 pc-paddingBottom-16 pc-justifyContent-space-between pc-alignItems-center pc-reset"><div class="pencraft pc-display-flex pc-flexDirection-column pc-position-relative pc-minWidth-0 pc-reset bg-primary-zk6FDl outline-detail-vcQLyr pc-borderRadius-sm overflow-hidden-WdpwT6"><div dir="ltr" data-orientation="horizontal" class="pencraft pc-display-flex pc-flexDirection-column pc-reset flex-grow-rzmknG"><div style="outline:none;" tabindex="-1" aria-label="Tabs" role="tablist" aria-orientation="horizontal" data-orientation="horizontal" class="pencraft pc-display-flex pc-gap-4 pc-padding-4 pc-position-relative pc-reset cursor-default-flE2S1 pc-borderRadius-sm overflow-auto-7WTsTi scrollBar-hidden-HcAIpI"><button tabindex="-1" type="button" role="tab" aria-selected="true" aria-controls="radix-P0-70-content-top" data-state="active" id="radix-P0-70-trigger-top" data-orientation="horizontal" data-radix-collection-item class="pencraft pc-reset flex-auto-j3S2WA pencraft segment-j4TeZ4 buttonBase-GK1x3M buttonText-X0uSmG buttonStyle-r7yGCK priority_quaternary-kpMibu size_sm-G3LciD">Top</button><button tabindex="-1" type="button" role="tab" aria-selected="false" aria-controls="radix-P0-70-content-new" data-state="inactive" id="radix-P0-70-trigger-new" data-orientation="horizontal" data-radix-collection-item class="pencraft pc-reset flex-auto-j3S2WA pencraft segment-j4TeZ4 buttonBase-GK1x3M buttonText-X0uSmG buttonStyle-r7yGCK priority_quaternary-kpMibu size_sm-G3LciD">Latest</button><div class="pencraft pc-position-absolute pc-height-32 pc-reset bg-secondary-UUD3_J pc-borderRadius-xs sizing-border-box-DggLA4 highlight-U002IP"></div></div></div><div class="pencraft pc-display-flex pc-alignItems-center pc-reset arrowButtonContainer-O4uSiH arrowButtonOverlaidContainer-t10AyH left-Tg8vqp"><div class="overlay-zrMCxn primary-lv_sOW"></div></div><div class="pencraft pc-display-flex pc-alignItems-center pc-reset arrowButtonContainer-O4uSiH arrowButtonOverlaidContainer-t10AyH right-i3oWGi"><div class="overlay-zrMCxn primary-lv_sOW"></div></div></div><button tabindex="0" type="button" aria-label="Search" class="pencraft pc-reset pencraft iconButton-mq_Et5 iconButtonBase-dJGHgN buttonBase-GK1x3M buttonStyle-r7yGCK size_md-gCDS3o priority_tertiary-rlke8z"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-search"><circle cx="11" cy="11" r="8"></circle><path d="m21 21-4.3-4.3"></path></svg></button></div><div class="portable-archive-list"><p class="portable-archive-empty dt-archive-empty-state">No posts</p></div></div></div></div></div><div class="visibility-check"></div><div class="pencraft pc-display-contents pc-reset pubInvertedTheme-U483dz"><div class="pencraft pc-display-flex pc-flexDirection-column pc-alignItems-center pc-justifyContent-center pc-padding-48 pc-mobile-padding-24 pc-reset bg-primary-zk6FDl container-jsOc9L"><div class="pencraft pc-display-flex pc-flexDirection-column pc-alignItems-center pc-gap-24 pc-flexWrap-wrap pc-reset content-jLbYeh"><h3 class="pencraft pc-reset color-primary-zABazT align-center-y7ZD4w line-height-28-s562kJ font-display-nhmvtD size-24-lFU3ly weight-semibold-uqA4FV reset-IxiVJZ">Ready for more?</h3><div class="container-IpPqBD"><form action="/api/v1/free?nojs=true" method="post" novalidate class="form form-M5sC90"><input type="hidden" name="first_url" value/><input type="hidden" name="first_referrer" value/><input type="hidden" name="current_url"/><input type="hidden" name="current_referrer"/><input type="hidden" name="first_session_url" value/><input type="hidden" name="first_session_referrer" value/><input type="hidden" name="referral_code"/><input type="hidden" name="source" value="subscribe_footer"/><input type="hidden" name="referring_pub_id"/><input type="hidden" name="additional_referring_pub_ids"/><div class="sideBySideWrap-vGXrwP"><div class="emailInputWrapper-QlA86j"><div class="pencraft pc-display-flex pc-minWidth-0 pc-position-relative pc-reset flex-auto-j3S2WA"><input name="email" placeholder="Type your email..." type="email" class="pencraft emailInput-OkIMeB emailInputOnAccentBackground-TfaCGr input-y4v6N4 inputText-pV_yWb"/></div></div><button tabindex="0" type="submit" disabled class="pencraft pc-reset pencraft rightButton primary subscribe-btn button-VFSdkv buttonOnAccentBackground-vmEt94 buttonBase-GK1x3M"><span class="button-text ">Subscribe</span></button></div><div id="error-container"></div></form></div></div></div></div></div></div></div><div class="pencraft pc-display-flex pc-flexDirection-column pc-reset container-K5XPov"></div><div class="footer-wrap publication-footer"><div class="visibility-check"></div><div class="footer themed-background"><div class="container"><div class="footer-terms"><span>© 2026 hross</span><span> · </span><a href="https://substack.com/privacy" target="_blank" rel="noopener" class="pencraft pc-reset decoration-underline-ClTkYc">Privacy</a><span> ∙ </span><a href="https://substack.com/tos" target="_blank" rel="noopener" class="pencraft pc-reset decoration-underline-ClTkYc">Terms</a><span> ∙ </span><a href="https://substack.com/ccpa#personal-data-collected" target="_blank" rel="noopener" class="pencraft pc-reset decoration-underline-ClTkYc">Collection notice</a></div><div class="pencraft pc-display-flex pc-gap-8 pc-justifyContent-center pc-alignItems-center pc-reset footerButtons-ap9Sk7"><a data-native="true" href="https://substack.com/signup?utm_source=substack&utm_medium=web&utm_content=footer" class="footerSubstackCta-v5HWfj"><svg aria-hidden="true" width="1000" height="1000" viewBox="0 0 1000 1000" fill="#ff6719" stroke-width="1.8" stroke="none" xmlns="http://www.w3.org/2000/svg"><g><path d="M764.166 348.371H236.319V419.402H764.166V348.371Z"></path><path d="M236.319 483.752V813.999L500.231 666.512L764.19 813.999V483.752H236.319Z"></path><path d="M764.166 213H236.319V284.019H764.166V213Z"></path></g></svg> Start your Substack</a><a data-native="true" href="https://substack.com/app/app-store-redirect?utm_campaign=app-marketing&utm_content=web-footer-button" class="footerSubstackCta-v5HWfj getTheApp-Yk3w1O noIcon-z7v9D8">Get the app</a></div><div translated class="pencraft pc-reset reset-IxiVJZ footer-slogan-blurb"><a href="https://substack.com" data-native="true">Substack</a> is the home for great culture</div></div></div></div></div><div role="region" aria-label="Notifications (F8)" tabindex="-1" style="pointer-events:none;"><ol tabindex="-1" style="--offset:0px;z-index:1000;" class="viewport-_BM4Bg"></ol></div><div></div><script suppressHydrationWarning nonce="rPMlCqB6HON3nxLwQDKoKw">window.__staticRouterHydrationData = JSON.parse("{\"loaderData\":{},\"actionData\":null,\"errors\":null}");</script>
|
||
</div>
|
||
|
||
|
||
<script src="https://js.sentry-cdn.com/6c2ff3e3828e4017b7faf7b63e24cdf8.min.js" crossorigin="anonymous"></script>
|
||
<script nonce="rPMlCqB6HON3nxLwQDKoKw">
|
||
window.Sentry && window.Sentry.onLoad(function() {
|
||
window.Sentry.init({
|
||
environment: window._preloads.sentry_environment,
|
||
dsn: window._preloads.sentry_dsn,
|
||
})
|
||
})
|
||
</script>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<script nonce="rPMlCqB6HON3nxLwQDKoKw">window._preloads = JSON.parse("{\"cspNonce\":\"rPMlCqB6HON3nxLwQDKoKw\",\"isEU\":false,\"language\":\"en\",\"country\":\"US\",\"leaderboardCountries\":[\"ES\",\"FR\",\"GB\",\"IT\",\"NL\"],\"enabledLeaderboardCountries\":[\"ES\",\"FR\",\"GB\",\"IT\",\"NL\"],\"userLocale\":{\"language\":\"en\",\"region\":\"US\",\"source\":\"accept-language\"},\"base_url\":\"https://hross.substack.com\",\"stripe_publishable_key\":\"pk_live_51QfnARLDSWi1i85FBpvw6YxfQHljOpWXw8IKi5qFWEzvW8HvoD8cqTulR9UWguYbYweLvA16P7LN6WZsGdZKrNkE00uGbFaOE3\",\"captcha_site_key\":\"6LeI15YsAAAAAPXyDcvuVqipba_jEFQCjz1PFQoz\",\"pub\":{\"apple_pay_disabled\":false,\"apex_domain\":null,\"author_id\":11634007,\"byline_images_enabled\":true,\"bylines_enabled\":true,\"chartable_token\":null,\"community_enabled\":true,\"copyright\":\"hross\",\"cover_photo_url\":\"https://substack-post-media.s3.amazonaws.com/public/images/dd7751b2-08a0-42c0-94af-58e930bd22cc_1024x768.png\",\"created_at\":\"2022-02-06T17:06:25.023Z\",\"custom_domain_optional\":false,\"custom_domain\":null,\"default_comment_sort\":\"best_first\",\"default_coupon\":null,\"default_group_coupon\":null,\"default_show_guest_bios\":true,\"email_banner_url\":null,\"email_from_name\":\"hross\",\"email_from\":null,\"embed_tracking_disabled\":false,\"explicit\":false,\"expose_paywall_content_to_search_engines\":true,\"fb_pixel_id\":null,\"fb_site_verification_token\":null,\"flagged_as_spam\":false,\"founding_subscription_benefits\":null,\"free_subscription_benefits\":null,\"ga_pixel_id\":null,\"google_site_verification_token\":null,\"google_tag_manager_token\":null,\"hero_image\":null,\"hero_text\":\"Software development and SRE learned from making lots of mistakes.\",\"hide_intro_subtitle\":null,\"hide_intro_title\":null,\"hide_podcast_feed_link\":false,\"homepage_type\":\"newspaper\",\"id\":734663,\"image_thumbnails_always_enabled\":false,\"invite_only\":false,\"hide_podcast_from_pub_listings\":false,\"hide_podcast_from_pub_listings_prior_to\":null,\"language\":\"en\",\"logo_url_wide\":null,\"logo_url\":null,\"minimum_group_size\":2,\"moderation_enabled\":true,\"name\":\"software + caffeine = blog\",\"paid_subscription_benefits\":null,\"parsely_pixel_id\":null,\"chartbeat_domain\":null,\"payments_state\":\"disabled\",\"paywall_free_trial_enabled\":false,\"podcast_art_url\":null,\"paid_podcast_episode_art_url\":null,\"podcast_byline\":null,\"podcast_description\":null,\"podcast_enabled\":false,\"podcast_feed_url\":null,\"podcast_title\":null,\"post_preview_limit\":null,\"primary_user_id\":11634007,\"require_clickthrough\":false,\"show_pub_podcast_tab\":false,\"show_recs_on_homepage\":true,\"subdomain\":\"hross\",\"subscriber_invites\":0,\"support_email\":null,\"theme_var_background_pop\":\"#FF6B00\",\"theme_var_color_links\":false,\"theme_var_cover_bg_color\":null,\"trial_end_override\":null,\"twitter_pixel_id\":null,\"type\":\"newsletter\",\"post_reaction_faces_enabled\":true,\"is_personal_mode\":false,\"plans\":null,\"stripe_user_id\":null,\"stripe_country\":null,\"stripe_publishable_key\":null,\"stripe_platform_account\":null,\"automatic_tax_enabled\":null,\"author_name\":\"Ross Brodbeck\",\"author_handle\":\"hross\",\"author_photo_url\":\"https://substackcdn.com/image/fetch/$s_!zA8r!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg\",\"author_bio\":\"Working at GitHub in SRE. I sometimes manage software teams and write about it.\",\"twitter_screen_name\":\"hross\",\"has_custom_tos\":false,\"has_custom_privacy\":false,\"theme\":{\"background_pop_color\":null,\"web_bg_color\":null,\"cover_bg_color\":null,\"home_hero\":\"newspaper\",\"home_posts\":\"list\"},\"threads_v2_settings\":null,\"default_group_coupon_percent_off\":null,\"default_group_coupon_include_founding\":null,\"pause_return_date\":null,\"has_posts\":true,\"has_recommendations\":false,\"first_post_date\":\"2015-07-25T19:14:32.905Z\",\"has_podcast\":false,\"has_free_podcast\":false,\"has_subscriber_only_podcast\":false,\"has_community_content\":false,\"rankingDetail\":null,\"rankingDetailFreeIncluded\":null,\"rankingDetailOrderOfMagnitude\":null,\"rankingDetailFreeIncludedOrderOfMagnitude\":null,\"rankingDetailFreeSubscriberCount\":null,\"rankingDetailByLanguage\":{},\"freeSubscriberCount\":null,\"freeSubscriberCountOrderOfMagnitude\":null,\"author_bestseller_tier\":0,\"author_badge\":{\"type\":\"subscriber\",\"tier\":1,\"accent_colors\":null},\"disable_monthly_subscriptions\":false,\"disable_annual_subscriptions\":false,\"hide_post_restacks\":false,\"notes_feed_enabled\":false,\"showIntroModule\":false,\"isPortraitLayout\":false,\"last_chat_post_at\":null,\"primary_profile_name\":\"Ross Brodbeck\",\"primary_profile_photo_url\":\"https://substackcdn.com/image/fetch/$s_!zA8r!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fbucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com%2Fpublic%2Fimages%2F11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg\",\"no_follow\":false,\"sponsorshipCampaigns\":{},\"paywall_chat\":\"free\",\"sections\":[],\"podcastTabInfo\":null,\"multipub_migration\":null,\"navigationBarItems\":[],\"has_active_perks\":false,\"contributors\":[{\"name\":\"Ross Brodbeck\",\"handle\":\"hross\",\"role\":\"admin\",\"owner\":true,\"user_id\":11634007,\"photo_url\":\"https://bucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com/public/images/11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg\",\"bio\":\"Working at GitHub in SRE. I sometimes manage software teams and write about it.\",\"status\":{\"bestsellerTier\":null,\"subscriberTier\":1,\"leaderboard\":null,\"vip\":false,\"badge\":{\"type\":\"subscriber\",\"tier\":1,\"accent_colors\":null},\"subscriber\":null}}],\"threads_v2_enabled\":false,\"viralGiftsConfig\":null,\"no_index\":false,\"tier\":2,\"can_set_google_site_verification\":true,\"can_have_sitemap\":true,\"founding_plan_name_english\":\"Founding Member\",\"base_url\":\"https://hross.substack.com\",\"hostname\":\"hross.substack.com\",\"is_on_substack\":false,\"spotify_podcast_settings\":null,\"unified_podcast_settings\":null,\"podcastPalette\":{\"DarkMuted\":{\"population\":72,\"rgb\":[73,153,137]},\"DarkVibrant\":{\"population\":6013,\"rgb\":[4,100,84]},\"LightMuted\":{\"population\":7,\"rgb\":[142,198,186]},\"LightVibrant\":{\"population\":3,\"rgb\":[166,214,206]},\"Muted\":{\"population\":6,\"rgb\":[92,164,156]},\"Vibrant\":{\"population\":5,\"rgb\":[76,164,146]}},\"pageThemes\":{\"podcast\":null},\"supports_ip_content_unlock\":false,\"appTheme\":{\"colors\":{\"accent\":{\"name\":\"#ff6b00\",\"primary\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1},\"primary_hover\":{\"r\":232,\"g\":88,\"b\":0,\"a\":1},\"primary_elevated\":{\"r\":232,\"g\":88,\"b\":0,\"a\":1},\"secondary\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.2},\"contrast\":{\"r\":255,\"g\":255,\"b\":255,\"a\":1},\"bg\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.2},\"bg_hover\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.3},\"dark\":{\"primary\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1},\"primary_hover\":{\"r\":255,\"g\":136,\"b\":66,\"a\":1},\"primary_elevated\":{\"r\":255,\"g\":136,\"b\":66,\"a\":1},\"secondary\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.2},\"contrast\":{\"r\":255,\"g\":255,\"b\":255,\"a\":1},\"bg\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.2},\"bg_hover\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.3}}},\"fg\":{\"primary\":{\"r\":0,\"g\":0,\"b\":0,\"a\":0.8},\"secondary\":{\"r\":0,\"g\":0,\"b\":0,\"a\":0.6},\"tertiary\":{\"r\":0,\"g\":0,\"b\":0,\"a\":0.4},\"accent\":{\"r\":210,\"g\":68,\"b\":0,\"a\":1},\"dark\":{\"primary\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0.9},\"secondary\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0.6},\"tertiary\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0.4},\"accent\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1}}},\"bg\":{\"name\":\"#ffffff\",\"hue\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0},\"tint\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0},\"primary\":{\"r\":255,\"g\":255,\"b\":255,\"a\":1},\"primary_hover\":{\"r\":250,\"g\":250,\"b\":250,\"a\":1},\"primary_elevated\":{\"r\":250,\"g\":250,\"b\":250,\"a\":1},\"secondary\":{\"r\":238,\"g\":238,\"b\":238,\"a\":1},\"secondary_elevated\":{\"r\":206.90096477355226,\"g\":206.90096477355175,\"b\":206.9009647735519,\"a\":1},\"tertiary\":{\"r\":219,\"g\":219,\"b\":219,\"a\":1},\"quaternary\":{\"r\":182,\"g\":182,\"b\":182,\"a\":1},\"dark\":{\"primary\":{\"r\":22,\"g\":23,\"b\":24,\"a\":1},\"primary_hover\":{\"r\":27,\"g\":28,\"b\":29,\"a\":1},\"primary_elevated\":{\"r\":27,\"g\":28,\"b\":29,\"a\":1},\"secondary\":{\"r\":35,\"g\":37,\"b\":37,\"a\":1},\"secondary_elevated\":{\"r\":41.35899397549579,\"g\":43.405356429195315,\"b\":43.40489285041963,\"a\":1},\"tertiary\":{\"r\":54,\"g\":55,\"b\":55,\"a\":1},\"quaternary\":{\"r\":90,\"g\":91,\"b\":91,\"a\":1}}}}},\"portalAppTheme\":{\"colors\":{\"accent\":{\"name\":\"#FF6B00\",\"primary\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1},\"primary_hover\":{\"r\":230,\"g\":96,\"b\":0,\"a\":1},\"primary_elevated\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1},\"secondary\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1},\"contrast\":{\"r\":255,\"g\":255,\"b\":255,\"a\":1},\"bg\":{\"r\":255,\"g\":103,\"b\":25,\"a\":0.2},\"bg_hover\":{\"r\":255,\"g\":103,\"b\":25,\"a\":0.3},\"dark\":{\"primary\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1},\"primary_hover\":{\"r\":255,\"g\":136,\"b\":66,\"a\":1},\"primary_elevated\":{\"r\":255,\"g\":136,\"b\":66,\"a\":1},\"secondary\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.2},\"contrast\":{\"r\":255,\"g\":255,\"b\":255,\"a\":1},\"bg\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.2},\"bg_hover\":{\"r\":255,\"g\":107,\"b\":0,\"a\":0.3}}},\"fg\":{\"primary\":{\"r\":0,\"g\":0,\"b\":0,\"a\":0.8},\"secondary\":{\"r\":0,\"g\":0,\"b\":0,\"a\":0.5},\"tertiary\":{\"r\":0,\"g\":0,\"b\":0,\"a\":0.3},\"accent\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1},\"dark\":{\"primary\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0.9},\"secondary\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0.6},\"tertiary\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0.4},\"accent\":{\"r\":255,\"g\":107,\"b\":0,\"a\":1}}},\"bg\":{\"name\":\"None\",\"hue\":{\"r\":255,\"g\":255,\"b\":255,\"a\":1},\"tint\":{\"r\":255,\"g\":255,\"b\":255,\"a\":0},\"primary\":{\"r\":255,\"g\":255,\"b\":255,\"a\":1},\"primary_hover\":{\"r\":250,\"g\":250,\"b\":250,\"a\":1},\"primary_elevated\":{\"r\":255,\"g\":255,\"b\":255,\"a\":1},\"secondary\":{\"r\":238,\"g\":238,\"b\":238,\"a\":1},\"secondary_elevated\":{\"r\":219,\"g\":219,\"b\":219,\"a\":1},\"tertiary\":{\"r\":219,\"g\":219,\"b\":219,\"a\":1},\"quaternary\":{\"r\":182,\"g\":182,\"b\":182,\"a\":1},\"dark\":{\"primary\":{\"r\":22,\"g\":23,\"b\":24,\"a\":1},\"primary_hover\":{\"r\":27,\"g\":28,\"b\":29,\"a\":1},\"primary_elevated\":{\"r\":27,\"g\":28,\"b\":29,\"a\":1},\"secondary\":{\"r\":35,\"g\":37,\"b\":37,\"a\":1},\"secondary_elevated\":{\"r\":41.35899397549579,\"g\":43.405356429195315,\"b\":43.40489285041963,\"a\":1},\"tertiary\":{\"r\":54,\"g\":55,\"b\":55,\"a\":1},\"quaternary\":{\"r\":90,\"g\":91,\"b\":91,\"a\":1}}},\"is_dark\":false}}},\"confirmedLogin\":false,\"hide_intro_popup\":false,\"block_auto_login\":false,\"domainInfo\":{\"isSubstack\":true,\"customDomain\":null},\"experimentFeatures\":{},\"experimentExposures\":{},\"siteConfigs\":{\"score_upsell_email\":\"control\",\"first_chat_email_enabled\":true,\"new_commenter_approval\":false,\"pub_update_opennode_api_key\":false,\"notes_video_max_duration_minutes\":15,\"show_content_label_age_gating_in_feed\":false,\"zendesk_automation_cancellations\":false,\"mfa_action_box_enabled\":false,\"publication_max_bylines\":35,\"no_contest_charge_disputes\":false,\"scheduled_post_share_assets_enabled\":false,\"publication_tabs_reorder\":false,\"comp_expiry_email_new_copy\":\"NONE\",\"free_unlock_required\":false,\"enable_section_group_pages\":false,\"enable_post_summarization\":false,\"live_stream_host_warning_message\":\"\",\"bitcoin_enabled\":false,\"minimum_ios_os_version\":\"17.0.0\",\"show_entire_square_image\":false,\"hide_subscriber_count\":false,\"fit_in_live_stream_player\":false,\"publication_author_display_override\":\"\",\"enable_saved_segments\":true,\"generate_pdf_tax_report\":false,\"hide_post_sidebar\":false,\"show_generic_post_importer\":false,\"enable_pledges_modal\":true,\"community_automod_non_english_enabled\":true,\"audio_clips_enabled\":false,\"enable_videos_page\":false,\"exempt_from_gtm_filter\":false,\"group_sections_and_podcasts_in_menu\":false,\"boost_optin_modal_enabled\":true,\"standards_and_enforcement_features_enabled\":false,\"pub_creation_captcha_behavior\":\"risky_pubs_or_rate_limit\",\"post_blogspot_importer\":false,\"enable_high_res_background_uploading\":false,\"pub_tts_override\":\"default\",\"disable_monthly_subscriptions\":false,\"skip_welcome_email\":false,\"chat_reader_thread_notification_default\":false,\"scheduled_pinned_posts\":false,\"disable_redirect_outbound_utm_params\":false,\"reader_gift_referrals_enabled\":true,\"dont_show_guest_byline\":false,\"like_comments_enabled\":true,\"enable_theme_editor_deferred_saves\":false,\"enable_sponsorship_campaigns_advanced\":false,\"temporal_livestream_ended_draft\":true,\"enable_pangram_ai_detection\":true,\"fallback_to_archive_search_on_section_pages\":false,\"livekit_track_egress_custom_base_url\":\"http://livekit-egress-custom-recorder-participant-test.s3-website-us-east-1.amazonaws.com\",\"welcome_screen_blurb_override\":\"\",\"like_posts_enabled\":true,\"twitter_player_card_enabled\":true,\"feed_promoted_user\":false,\"show_note_stats_for_all_notes\":false,\"section_specific_csv_imports_enabled\":false,\"disable_podcast_feed_description_cta\":false,\"bypass_profile_substack_logo_detection\":false,\"use_preloaded_player_sources\":false,\"list_pruning_enabled\":false,\"facebook_connect\":false,\"opt_in_to_sections_during_subscribe\":false,\"underlined_colored_links\":false,\"enable_efficient_digest_embed\":false,\"enable_aligned_images\":false,\"max_image_upload_mb\":64,\"threads_suggested_ios_version\":null,\"pledges_disabled\":false,\"threads_minimum_ios_version\":812,\"hide_podcast_email_setup_link\":false,\"subscribe_captcha_behavior\":\"default\",\"publication_ban_sample_rate\":0,\"custom_themes_substack_subscribe_modal\":false,\"ios_post_share_assets_screenshot_trigger\":\"control\",\"opt_in_to_sections_during_subscribe_include_main_pub_newsletter\":false,\"continue_support_cta_in_newsletter_emails\":false,\"bloomberg_syndication_enabled\":false,\"allow_document_freeze\":false,\"test_age_gate_user\":false,\"podcast_main_feed_is_firehose\":false,\"pub_app_incentive_gift\":\"\",\"no_embed_redirect\":false,\"customized_email_from_name_for_new_follow_emails\":\"treatment\",\"spotify_open_access_sandbox_mode\":false,\"disable_custom_nav_menu\":false,\"enable_livestream_name_cards\":false,\"fullstory_enabled\":false,\"chat_reply_poll_interval\":3,\"thefp_enable_email_upsell_banner\":false,\"force_pub_links_to_use_subdomain\":false,\"always_show_cookie_banner\":false,\"hide_media_download_option\":false,\"hide_post_restacks\":false,\"feed_item_source_debug_mode\":false,\"twitter_embed_video_playback_enabled\":false,\"publication_homepage_title_display_override\":\"\",\"enable_email_automation_stats\":false,\"post_preview_highlight_byline\":false,\"4k_video\":false,\"enable_islands_section_intent_screen\":false,\"post_metering_enabled\":false,\"notifications_disabled\":\"\",\"cross_post_notification_threshold\":1000,\"facebook_connect_prod_app\":true,\"force_into_pymk_ranking\":false,\"minimum_android_version\":756,\"group_size_change_notification_email_enabled\":false,\"enable_transcription_translations\":false,\"use_og_image_as_twitter_image_for_post_previews\":false,\"always_use_podcast_channel_art_as_episode_art_in_rss\":false,\"seo_tier_override\":\"NONE\",\"editor_role_enabled\":false,\"no_follow_links\":false,\"publisher_api_enabled\":false,\"zendesk_support_priority\":\"default\",\"enable_post_clips_stats\":false,\"enable_subscriber_referrals_awards\":true,\"ios_profile_themes_feed_permalink_enabled\":false,\"reader_survey_during_subscribe_enabled\":true,\"use_publication_language_for_transcription\":false,\"show_substack_funded_gifts_tooltip\":true,\"disable_ai_transcription\":false,\"per_pub_notification_settings\":false,\"live_stream_creation_enabled\":true,\"disable_card_element_in_europe\":false,\"web_growth_item_promotion_threshold\":0,\"bundle_subscribe_enabled\":false,\"web_vitals_sample_rate\":0,\"allow_live_stream_auto_takedown\":\"true\",\"mobile_publication_attachments_enabled\":false,\"enable_design_templates_events_page\":false,\"enable_survey_response_crm_filters\":false,\"disable_personal_substack_initialization\":false,\"section_specific_welcome_pages\":false,\"local_payment_methods\":\"control\",\"publisher_api_cancel_comp\":false,\"posts_in_rss_feed\":20,\"publisher_dashboard_section_selector\":false,\"reader_surveys_platform_question_order\":\"36,1,4,2,3,5,6,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35\",\"login_guard_app_link_in_email\":true,\"community_moderators_enabled\":false,\"enable_custom_theme\":false,\"monthly_sub_is_one_off\":false,\"unread_notes_activity_digest\":\"control\",\"display_cookie_settings\":false,\"welcome_page_query_params\":false,\"enable_free_podcast_urls\":false,\"comp_expiry_emails_disabled\":false,\"enable_description_on_polls\":false,\"use_microlink_for_instagram_embeds\":false,\"free_signup_confirmation_behavior\":\"with_email_validation\",\"ios_post_stats_for_admins\":false,\"enable_design_templates\":false,\"use_livestream_post_media_composition\":true,\"section_specific_preambles\":false,\"pub_export_temp_disable\":false,\"show_menu_on_posts\":false,\"ios_post_subscribe_web_routing\":true,\"enable_pangram_detection_settings\":false,\"freewalls_enabled_web\":false,\"app_onboarding_survey_email\":false,\"republishing_enabled\":false,\"app_mode\":false,\"show_phone_banner\":false,\"minimum_ios_version\":2200,\"enable_author_pages\":false,\"enable_decagon_chat\":true,\"first_month_upsell\":\"control\",\"new_user_checklist_enabled\":\"use_follower_count\",\"disable_high_res_recording\":false,\"latex_upgraded_inline\":false,\"anonymous_post_metering_enabled\":false,\"rss_verification_code\":\"\",\"notification_post_emails\":\"experiment\",\"chat_suppress_contributor_push_option_enabled\":false,\"enable_subscriber_tags\":true,\"media_feed_app_prepend_inbox_limit\":0,\"export_hooks_enabled\":false,\"audio_encoding_bitrate\":null,\"extra_seats_coupon_type\":false,\"post_subdomain_universal_links\":false,\"post_import_max_file_size\":26214400,\"feed_promoted_video_publication\":false,\"livekit_reconnect_slate_url\":\"https://mux-livestream-assets.s3.us-east-1.amazonaws.com/custom-disconnect-slate-tall.png\",\"exclude_from_pymk_suggestions\":false,\"publication_ranking_variant\":\"experiment\",\"disable_annual_subscriptions\":false,\"hack_jane_manchun_wong\":true,\"android_enable_auto_gain_control\":true,\"allow_coupons_on_upgrade\":false,\"test_au_age_gate_user\":false,\"pub_auto_moderation_enabled\":false,\"disable_live_stream_ai_trimming_by_default\":false,\"disable_deletion\":false,\"livekit_egress_custom_base_url\":\"http://livekit-egress-custom-recorder.s3-website-us-east-1.amazonaws.com\",\"clip_focused_video_upload_flow\":false,\"live_stream_max_guest_users\":2,\"android_upgrade_alert_dialog_reincarnated\":true,\"enable_video_seo_data\":false,\"can_reimport_unsubscribed_users_with_2x_optin\":false,\"founding_upgrade_during_gift_disabled\":false,\"thefp_enable_section_groups\":false,\"review_incoming_email\":\"default\",\"enable_founding_gifts\":false,\"enable_sponsorship_campaigns\":false,\"thefp_forum_polls_enabled\":false,\"thefp_enable_embed_media_links\":false,\"sort_modal_search_results\":false,\"default_thumbnail_time\":10,\"load_test_unichat\":false,\"live_stream_head_alignment_guide\":false,\"free_press_combo_subscribe_flow_enabled\":false,\"enable_code_embed_toc\":false,\"enable_publication_tax_settings\":false,\"gifts_from_substack_feature_available\":true,\"disable_ai_clips\":false,\"enable_elevenlabs_voiceovers\":false,\"thefp_enable_transcripts\":false,\"show_simple_post_editor\":false,\"instacart_integration_enabled\":false,\"enable_publication_podcasts_page\":false,\"enable_direct_message_request_bypass\":false,\"enable_apple_news_sync\":false,\"live_stream_in_trending_topic_overrides\":\"\",\"free_press_newsletter_promo_enabled\":false,\"account_based_post_metering_enabled\":false,\"disable_live_stream_reactions\":false,\"instacart_partner_id\":\"\",\"enable_adhoc_email_scheduling\":true,\"media_feed_prepend_inbox_limit\":35,\"welcome_page_no_opt_out\":false,\"enable_caption_translation_tools\":false,\"section_specific_postscripts\":false,\"edit_profile_theme_colors\":false,\"disable_clipping_for_readers\":false,\"enable_apple_podcast_delivery_self_serve_pem_files\":false,\"enable_press_kit_preview_modal\":false,\"enable_rnc_page\":true,\"live_stream_video_degradation_preference\":\"maintainFramerate\",\"enable_high_follower_dm\":true,\"pause_app_badges\":false,\"profile_feed_expanded_inventory\":false,\"livekit_mux_latency_mode\":\"low\",\"feed_juiced_user\":0,\"global_iap_plan_setup_countries\":\"AE,AG,AL,AM,AT,AU,BA,BG,BH,BJ,BN,BS,BT,BW,CH,CI,CR,CY,CZ,DK,DZ,EC,EE,ET,FI,GM,GT,GY,HK,HR,HU,ID,IL,IN,IS,JM,JO,KE,KW,LC,LI,LK,LT,LU,LV,MA,MD,MG,MK,MN,MT,MU,MX,MY,MZ,NA,NO,NZ,OM,PA,PE,PH,PK,QA,RO,RS,RW,SE,SG,SI,SK,SN,SV,TH,TN,TR,TT,TW,TZ,UZ,VN,ZA\",\"enable_collapsed_content\":false,\"enable_polymarket_expandable_embeds\":true,\"publisher_dashboard_group_subs_sidebar\":false,\"use_advanced_commerce_api_for_iap\":false,\"skip_free_preview_language_in_podcast_notes\":false,\"larger_wordmark_on_publication_homepage\":false,\"enable_mobile_stats_for_admins\":false,\"enable_livestream_youtube_simulcast\":false,\"enable_persona_sandbox_environment\":false,\"allowed_email_domains\":\"mozmail.com\",\"create_nav_item_from_tag\":false,\"bypass_single_unlock_token_limit\":false,\"enable_code_embeds\":false,\"add_section_and_tag_metadata\":false,\"daily_promoted_notes_enabled\":true,\"enable_segments_ui_revamp\":true,\"enable_islands_cms\":false,\"enable_livestream_combined_stats\":false,\"redirect_to_pub_after_welcome_signup\":false,\"chartbeat_video_enabled\":false,\"enable_drip_campaigns\":false,\"enable_filtered_posts_on_homepage\":false,\"post_management_search_engine\":\"elasticsearch\",\"new_bestseller_leaderboard_feed_item_enabled\":false,\"feed_main_disabled\":false,\"enable_account_settings_revamp\":false,\"thefp_enable_fp_recirc_block\":false,\"top_search_variant\":\"control\",\"enable_debug_logs_ios\":false,\"show_pub_content_on_profile_for_pub_id\":0,\"show_pub_content_on_profile\":false,\"livekit_track_egress\":true,\"onboarding_suggestions_search\":\"experiment\",\"feed_tuner_enabled\":false,\"livekit_mux_latency_mode_rtmp\":\"low\",\"google_login_enabled\":false,\"livekit_high_quality_egress\":false,\"iap_announcement_blog_url\":\"\",\"disable_code_embed_chrome\":false,\"ios_livestream_feedback\":false,\"founding_plan_upgrade_warning\":false,\"ios_mediaplayer_reply_bar_v2\":false,\"enable_notification_email_batching\":true,\"note_author_poll_results_visible_by_default\":true,\"ios_hide_portal_tab_bar\":false,\"follow_upsell_rollout_percentage\":30,\"gift_article_enabled\":false,\"live_stream_invite_ttl_seconds\":900000,\"include_founding_plans_coupon_option\":false,\"thefp_enable_cancellation_discount_offer\":false,\"android_enable_edit_profile_theme\":false,\"disable_audio_enhancement\":false,\"pub_search_variant\":\"control\",\"ignore_video_in_notes_length_limit\":false,\"substack_gtm_enabled\":false,\"allow_long_videos\":true,\"enable_automation_filters\":false,\"use_enhanced_video_embed_player\":true,\"founding_upgrade_preview\":false,\"enable_viewing_all_livestream_viewers\":false,\"send_subscription_canceled_email\":false,\"enable_clip_prompt_variant_filtering\":true,\"chartbeat_enabled\":false,\"dpn_ranking_enabled\":true,\"enable_custom_email_css\":false,\"thefp_enable_shows_page\":false,\"enable_apple_podcast_auto_publish\":false,\"linkedin_profile_search_enabled\":false,\"publication_has_own_app\":false,\"suggested_minimum_ios_version\":0,\"thebulwark_enable_footer_actions\":false,\"enable_posts_to_segments\":true,\"trending_topics_module_long_term_experiment\":\"control\",\"phone_verification_fallback_to_twilio\":false,\"enable_suggested_searches\":true,\"enable_subscription_notification_email_batching\":true,\"feed_controls\":\"control\",\"thefp_enable_plans_modal_v2\":false,\"a24_redemption_link\":\"\",\"design_templates_launch_phase\":\"off\",\"post_custom_email_from_name_enabled\":false,\"ios_live_stream_auto_gain_enabled\":true,\"enable_publication_tts_player\":false,\"enable_group_direct_messages\":true,\"enable_notes_admins\":false,\"thefp_show_pub_app_callout_on_post\":false,\"search_ranker_variant\":\"experiment\",\"forced_featured_topic_id\":\"\",\"ios_audio_captions_disabled\":false,\"web_podcasts_tab\":false,\"related_posts_enabled\":false,\"thefp_enable_homepage_secondary_nav\":false,\"ios_live_stream_pip_dismiss_v4\":\"control\",\"reply_rate_limit_max_distinct_users_daily\":110,\"web_post_metering_enabled\":true,\"search_retrieval_variant\":\"experiment\",\"mobile_user_attachments_enabled\":false,\"web_profile_publication_recommendations_carousel\":true,\"publisher_banner\":\"\",\"enable_sponsorship_profile\":false,\"gift_article_button_enabled\":false,\"reply_rate_limit_max_distinct_users_monthly\":600,\"desktop_live_stream_screen_share_audio_enabled\":false,\"creator_match\":true,\"ai_image_generation_enabled\":true,\"ios_default_coupon_enabled\":true,\"automod_admin_hidden_comments_tab\":true,\"video_clip_suggestions_enabled\":false,\"publisher_dashboard_home_layout_experiment\":\"control\",\"android_polymarket_embed_search\":false,\"audience_section_editor_help_link\":\"https://support.substack.com/hc/en-us/articles/50558240901268-How-do-I-add-audience-specific-content-to-a-post-on-Substack\",\"portal_ranking_variant\":\"experiment\",\"permalink_reply_ranking_variant\":\"experiment\",\"allow_feed_category_filtering\":false,\"enable_dynamic_content\":true,\"enable_thumbnail_editor_media_settings_integration\":false,\"subscriber_profile_survey_responses_enabled\":true,\"private_live_streaming_enabled\":true,\"desktop_live_stream_safe_framing\":0.8,\"translate_posts_on_standalone_sites\":true,\"bundle_subscribe_default_to_regular_plan\":false,\"enable_standardized_sponsorship_formats\":false,\"enable_pencraft_signin_form\":true,\"thefp_enable_secondary_section_redesign\":false,\"bignight_page_enabled\":true,\"thefp_paywall_annual_plans_experiment\":\"control\",\"enable_launch_assistant\":false,\"enable_youtube_exploration\":true,\"publisher_dashboard_nav_refresh\":false,\"thefp_enable_bundle_post_follow\":false,\"web_notes_tiptap_v3_experiment\":\"treatment_tiptap_v3\",\"recipe_rich_text_enabled\":true,\"publisher_dashboard_nav_refresh_experiment\":\"treatment\",\"chat_channel_creation_enabled\":false,\"web_onboarding_content_type_preferences\":\"experiment\",\"web_mobile_asset_handoff\":false},\"trackingTokens\":{\"fbPixelId\":null,\"gaPixelId\":null,\"twitterPixelId\":null,\"parselyPixelId\":null,\"googleTagManagerToken\":null,\"googleAnalytics4Token\":null,\"twitterPixelSignupEventId\":null,\"twitterPixelSubscribeEventId\":null},\"publicationSettings\":{\"block_ai_crawlers\":false,\"credit_token_enabled\":false,\"custom_tos_and_privacy\":false,\"did_identity\":null,\"disable_optimistic_bank_payments\":false,\"display_welcome_page_details\":false,\"payment_pledges_enabled\":true,\"enable_drop_caps\":false,\"enable_post_page_conversion\":false,\"enable_prev_next_nav\":false,\"enable_restacking\":false,\"founding_group_subscriptions_enabled\":false,\"gifts_from_substack_disabled\":false,\"google_analytics_4_token\":null,\"group_sections_and_podcasts_in_menu_enabled\":false,\"live_stream_homepage_visibility\":\"contributorsAndAdmins\",\"live_stream_homepage_style\":\"autoPlay\",\"live_stream_replay_enabled\":true,\"medium_length_description\":\"\",\"notes_feed_enabled\":false,\"paywall_unlock_tokens\":false,\"post_preview_crop_gravity\":\"center\",\"post_preview_radius\":\"xs\",\"reader_referrals_enabled\":false,\"reader_referrals_leaderboard_enabled\":false,\"seen_coming_soon_explainer\":false,\"seen_google_analytics_migration_modal\":false,\"local_currency_modal_seen\":false,\"local_payment_methods_modal_seen\":false,\"twitter_pixel_signup_event_id\":null,\"twitter_pixel_subscribe_event_id\":null,\"use_inclusive_sales_tax\":false,\"use_local_currency\":false,\"welcome_page_opt_out_text\":\"No thanks\",\"cookie_settings\":\"\",\"show_restacks_below_posts\":true,\"holiday_gifting_post_header\":false,\"homepage_message_text\":\"\",\"homepage_message_link\":\"\",\"about_us_author_ids\":\"\",\"archived_section_ids\":\"\",\"column_section_ids\":\"\",\"fp_primary_column_section_ids\":\"\",\"event_section_ids\":\"\",\"podcasts_metadata\":\"\",\"video_section_ids\":\"\",\"post_metering_enabled\":false,\"account_based_post_metering_enabled\":false,\"use_custom_theme\":false,\"reply_rules\":null,\"automatic_moderation_enabled\":true,\"auto_translate_enabled\":true,\"additional_post_languages_enabled\":false,\"high_res_recording_beta\":false},\"publicationUserSettings\":null,\"userSettings\":{\"user_id\":null,\"activity_likes_enabled\":true,\"dashboard_nav_refresh_enabled\":false,\"is_guest_post_enabled\":true,\"invite_friends_nux_dismissed_at\":null,\"suggestions_feed_item_last_shown_at\":null,\"last_notification_alert_shown_at\":null,\"disable_reply_hiding\":false,\"newest_seen_chat_item_published_at\":null,\"explicitContentEnabled\":false,\"contactMatchingEnabled\":false,\"messageRequestLevel\":\"everyone\",\"liveStreamAcceptableInviteLevel\":\"everyone\",\"liveStreamAcceptableChatLevel\":\"everyone\",\"creditTokensTreatmentExposed\":false,\"appBadgeIncludesChat\":false,\"autoPlayVideo\":true,\"autoAdvanceVideo\":true,\"smart_delivery_enabled\":false,\"chatbotTermsLastAcceptedAt\":null,\"has_seen_notes_post_app_upsell\":false,\"first_note_id\":null,\"show_concurrent_live_stream_viewers\":false,\"edit_profile_feed_item_dismissed_at\":null,\"mobile_permalink_app_upsell_seen_at\":null,\"new_user_checklist_enabled\":false,\"has_seen_youtube_shorts_auto_publish_announcement\":false,\"has_seen_publish_youtube_connect_upsell\":false,\"notificationQualityFilterEnabled\":true,\"hasSeenOnboardingNewslettersScreen\":false,\"bestsellerBadgeEnabled\":true,\"hasSelfIdentifiedAsCreator\":false,\"autoTranslateEnabled\":true,\"autoTranslateBlocklist\":[],\"fineTuneFeedItemSeenAt\":null,\"fineTuneFeedItemDismissedAt\":null,\"aiGeneratedTextMode\":\"show\",\"feedVideoPreference\":5,\"feedAudioPreference\":5,\"feedLongerPostsPreference\":5,\"feedChatPreference\":5},\"mux_env_key\":\"u42pci814i6011qg3segrcpp9\",\"persona_environment_id\":\"env_o1Lbk4JhpY4PmvNkwaBdYwe5Fzkt\",\"sentry_environment\":\"production\",\"launchWelcomePage\":false,\"pendingInviteForActiveLiveStream\":null,\"isEligibleForLiveStreamCreation\":true,\"webviewPlatform\":null,\"noIndex\":false,\"post\":{\"audience\":\"everyone\",\"audience_before_archived\":null,\"canonical_url\":\"https://hross.substack.com/p/the-rule-of-5-errors\",\"default_comment_sort\":null,\"editor_v2\":false,\"exempt_from_archive_paywall\":false,\"free_unlock_required\":false,\"id\":144529081,\"podcast_art_url\":null,\"podcast_duration\":null,\"podcast_preview_upload_id\":null,\"podcast_upload_id\":null,\"podcast_url\":null,\"post_date\":\"2024-05-13T13:43:44.772Z\",\"updated_at\":\"2024-05-13T13:43:44.846Z\",\"publication_id\":734663,\"search_engine_description\":null,\"search_engine_title\":null,\"section_id\":null,\"should_send_free_preview\":false,\"show_guest_bios\":true,\"slug\":\"the-rule-of-5-errors\",\"social_title\":null,\"subtitle\":\"Why request volume matters when building an SLI.\",\"teaser_post_eligible\":true,\"title\":\"The Rule of 5 Errors\",\"type\":\"newsletter\",\"video_upload_id\":null,\"write_comment_permissions\":\"none\",\"meter_type\":\"none\",\"live_stream_id\":null,\"is_published\":true,\"restacks\":0,\"reactions\":{\"\u2764\":3},\"top_exclusions\":[],\"pins\":[],\"section_pins\":[],\"has_shareable_clips\":false,\"previous_post_slug\":\"presenting-to-engineering-leadership\",\"next_post_slug\":\"why-didnt-you-status\",\"cover_image\":\"https://substackcdn.com/image/fetch/$s_!pQvr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png\",\"cover_image_is_square\":false,\"cover_image_is_explicit\":false,\"videoUpload\":null,\"podcastFields\":{\"post_id\":144529081,\"podcast_episode_number\":null,\"podcast_season_number\":null,\"podcast_episode_type\":null,\"should_syndicate_to_other_feed\":null,\"syndicate_to_section_id\":null,\"hide_from_feed\":false,\"free_podcast_url\":null,\"free_podcast_duration\":null,\"preview_contains_ad\":false,\"was_imported_self_serve_sync\":false,\"draft_free_podcast_url\":null,\"draft_free_podcast_duration\":null},\"podcastUpload\":null,\"podcastPreviewUpload\":null,\"voiceover_upload_id\":null,\"voiceoverUpload\":null,\"has_voiceover\":false,\"description\":\"Why request volume matters when building an SLI.\",\"body_html\":\"<p>All credit for the rule of 5 errors goes to <a href=\\\"https://www.usenix.org/conference/srecon22emea/presentation/palcuie\\\">Alex Palcuie during his SRECon talk in 2022</a>. It has been one of the most useful ways to frame error rate that I have seen. I have found myself referring to it multiple times and there isn\u2019t a standalone post on it, so here we go.</p><p>The <em><strong>Rule of 5 Errors</strong></em> is simply a heuristic that says we don\u2019t start tracking errors on a given metric unless it has 5 more or more errors over a given time frame.</p><p>To make this easier to visualize, here is a table that illustrates what error rate percentages look like for 5 errors at different request volumes:</p><div class=\\\"captioned-image-container\\\"><figure><a class=\\\"image-link image2 is-viewable-img\\\" target=\\\"_blank\\\" href=\\\"https://substackcdn.com/image/fetch/$s_!pQvr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png\\\" data-component-name=\\\"Image2ToDOM\\\"><div class=\\\"image2-inset\\\"><picture><source type=\\\"image/webp\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!pQvr!,w_424,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 424w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_848,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 848w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_1272,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 1272w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_1456,c_limit,f_webp,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 1456w\\\" sizes=\\\"100vw\\\"><img src=\\\"https://substackcdn.com/image/fetch/$s_!pQvr!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png\\\" width=\\\"1456\\\" height=\\\"477\\\" data-attrs=\\\"{"src":"https://substack-post-media.s3.amazonaws.com/public/images/584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png","srcNoWatermark":null,"fullscreen":null,"imageSize":null,"height":477,"width":1456,"resizeWidth":null,"bytes":156461,"alt":null,"title":null,"type":"image/png","href":null,"belowTheFold":false,"topImage":true,"internalRedirect":null,"isProcessing":false,"align":null,"offset":false}\\\" class=\\\"sizing-normal\\\" alt=\\\"\\\" srcset=\\\"https://substackcdn.com/image/fetch/$s_!pQvr!,w_424,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 424w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_848,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 848w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_1272,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 1272w, https://substackcdn.com/image/fetch/$s_!pQvr!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F584371ba-7c94-435b-b829-66c38d0912cd_2166x710.png 1456w\\\" sizes=\\\"100vw\\\" fetchpriority=\\\"high\\\"></picture><div class=\\\"image-link-expand\\\"><div class=\\\"pencraft pc-display-flex pc-gap-8 pc-reset\\\"><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container restack-image\\\"><svg aria-hidden=\\\"true\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 20 20\\\" fill=\\\"none\\\" stroke-width=\\\"1.5\\\" stroke=\\\"var(--color-fg-primary)\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" xmlns=\\\"http://www.w3.org/2000/svg\\\"><g><path d=\\\"M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882\\\"></path></g></svg></button><button tabindex=\\\"0\\\" type=\\\"button\\\" class=\\\"pencraft pc-reset pencraft icon-container view-image\\\"><svg xmlns=\\\"http://www.w3.org/2000/svg\\\" width=\\\"20\\\" height=\\\"20\\\" viewBox=\\\"0 0 24 24\\\" fill=\\\"none\\\" stroke=\\\"currentColor\\\" stroke-width=\\\"2\\\" stroke-linecap=\\\"round\\\" stroke-linejoin=\\\"round\\\" class=\\\"lucide lucide-maximize2 lucide-maximize-2\\\"><polyline points=\\\"15 3 21 3 21 9\\\"></polyline><polyline points=\\\"9 21 3 21 3 15\\\"></polyline><line x1=\\\"21\\\" x2=\\\"14\\\" y1=\\\"3\\\" y2=\\\"10\\\"></line><line x1=\\\"3\\\" x2=\\\"10\\\" y1=\\\"21\\\" y2=\\\"14\\\"></line></svg></button></div></div></div></a><figcaption class=\\\"image-caption\\\"><a href=\\\"https://docs.google.com/spreadsheets/d/1kzFIvxtB5s7Y6Wk4H4qeLvr_5OPN7bKh-dxOcxwvAzw/edit#gid=0\\\">Here is a Google Sheet with this data because substack doesn\u2019t like tables.</a></figcaption></figure></div><p>I have found this chart to be an awesome illustration of the concept that low volume data tends to be noisy. Yes, that sounds intuitive, but this chart gets the point across way better than words will.</p><p> For example, looking at the table above, if you only get 100 requests, <strong>5 errors will represent a 5% error rate</strong>, something you may well alert on if you are trying for 99% availability. Monitoring and alerting on that data volume will quickly cause <a href=\\\"https://www.atlassian.com/incident-management/on-call/alert-fatigue#What-is-alert-fatigue?\\\">alert fatigue</a>.</p><p>In general you can use this chart to evaluate whether the minimum data volume for any given metric is reasonable to alert on. </p><p>My general rule of thumb is that if you don\u2019t have 1,000 or more requests during low periods (for example, the weekend) then you may want to reconsider how you are building the metric or turn off the alerting when you have less than that volume. In Datadog, you can implement a rule like that using <a href=\\\"https://docs.datadoghq.com/monitors/types/composite/\\\">composite monitors</a>.</p>\",\"has_dynamic_content\":false,\"truncated_body_text\":\"All credit for the rule of 5 errors goes to Alex Palcuie during his SRECon talk in 2022. It has been one of the most useful ways to frame error rate that I have seen. I have found myself referring to it multiple times and there isn\u2019t a standalone post on it, so here we go.\",\"wordcount\":278,\"post_preview_limit\":null,\"language\":\"en\",\"postTags\":[{\"id\":\"0c302d84-0f8b-4141-b0d2-9371b9fb05ae\",\"publication_id\":734663,\"name\":\"Nines\",\"slug\":\"nines\",\"hidden\":false},{\"id\":\"f3e03972-d061-4f3a-ab56-d725785783f1\",\"publication_id\":734663,\"name\":\"SLI\",\"slug\":\"sli\",\"hidden\":false}],\"postCountryBlocks\":[],\"headlineTest\":null,\"coverImagePalette\":{\"Vibrant\":{\"rgb\":[76,140,244],\"population\":3},\"DarkVibrant\":{\"rgb\":[7.676842105263118,52.34210526315789,124.92315789473689],\"population\":0},\"LightVibrant\":{\"rgb\":[156,196,252],\"population\":4},\"Muted\":{\"rgb\":[109,132,164],\"population\":7},\"DarkMuted\":{\"rgb\":[90,100,116],\"population\":30},\"LightMuted\":{\"rgb\":[181,190,205],\"population\":295}},\"publishedBylines\":[{\"id\":11634007,\"name\":\"Ross Brodbeck\",\"handle\":\"hross\",\"photo_url\":\"https://bucketeer-e05bbc84-baa3-437e-9518-adb32be77984.s3.amazonaws.com/public/images/11954e3a-0b9d-4025-b1ef-17483bcdcc1d_200x200.jpeg\",\"bio\":\"Working at GitHub in SRE. I sometimes manage software teams and write about it.\",\"profile_set_up_at\":\"2022-02-06T19:17:37.435Z\",\"reader_installed_at\":\"2024-03-17T22:49:24.413Z\",\"publicationUsers\":[{\"id\":670164,\"user_id\":11634007,\"publication_id\":734663,\"role\":\"admin\",\"public\":true,\"is_primary\":true,\"publication\":{\"id\":734663,\"name\":\"software + caffeine = blog\",\"subdomain\":\"hross\",\"custom_domain\":null,\"custom_domain_optional\":false,\"hero_text\":\"Software development and SRE learned from making lots of mistakes.\",\"logo_url\":null,\"author_id\":11634007,\"primary_user_id\":11634007,\"theme_var_background_pop\":\"#FF6B00\",\"created_at\":\"2022-02-06T17:06:25.023Z\",\"email_from_name\":\"hross\",\"copyright\":\"hross\",\"founding_plan_name\":null,\"community_enabled\":true,\"invite_only\":false,\"payments_state\":\"disabled\",\"language\":null,\"explicit\":false,\"homepage_type\":null,\"is_personal_mode\":false,\"logo_url_wide\":null}},{\"id\":5024545,\"user_id\":11634007,\"publication_id\":4926068,\"role\":\"admin\",\"public\":true,\"is_primary\":false,\"publication\":{\"id\":4926068,\"name\":\"Navigating Neurodiversity in Wake County\",\"subdomain\":\"wakeupneuro\",\"custom_domain\":null,\"custom_domain_optional\":false,\"hero_text\":\"Information, resources and stories from navigating all the neurodiversity challenges in wake county.\",\"logo_url\":\"https://substack-post-media.s3.amazonaws.com/public/images/505965ed-4af7-490b-9deb-f7f55357695a_608x608.png\",\"author_id\":11634007,\"primary_user_id\":null,\"theme_var_background_pop\":\"#FF6719\",\"created_at\":\"2025-05-05T11:00:11.760Z\",\"email_from_name\":\"Navigating Neurodiversity in Wake County\",\"copyright\":\"Ross Brodbeck\",\"founding_plan_name\":null,\"community_enabled\":true,\"invite_only\":false,\"payments_state\":\"disabled\",\"language\":null,\"explicit\":false,\"homepage_type\":\"newspaper\",\"is_personal_mode\":false,\"logo_url_wide\":null}}],\"twitter_screen_name\":\"hross\",\"is_guest\":false,\"bestseller_tier\":null,\"status\":{\"bestsellerTier\":null,\"subscriberTier\":1,\"leaderboard\":null,\"vip\":false,\"badge\":{\"type\":\"subscriber\",\"tier\":1,\"accent_colors\":null},\"subscriber\":null}}],\"reaction\":null,\"reaction_count\":3,\"comment_count\":0,\"child_comment_count\":0,\"is_geoblocked\":false,\"hasCashtag\":false},\"comments\":[],\"canonicalUrl\":\"https://hross.substack.com/p/the-rule-of-5-errors\",\"inlineComments\":false,\"readerIsSearchCrawler\":false,\"ogUrl\":\"https://hross.substack.com/p/the-rule-of-5-errors\",\"bannedFromNotes\":false,\"themeVariables\":{\"color_theme_bg_pop\":\"#FF6B00\",\"background_pop\":\"#FF6B00\",\"color_theme_bg_web\":null,\"cover_bg_color\":\"#FFFFFF\",\"cover_bg_color_secondary\":\"#f0f0f0\",\"background_pop_darken\":\"#e66000\",\"print_on_pop\":\"#ffffff\",\"color_theme_bg_pop_darken\":\"#e66000\",\"color_theme_print_on_pop\":\"#ffffff\",\"color_theme_bg_pop_20\":\"rgba(255, 107, 0, 0.2)\",\"color_theme_bg_pop_30\":\"rgba(255, 107, 0, 0.3)\",\"print_pop\":\"#ff6b00\",\"color_theme_accent\":\"#ff6b00\",\"cover_print_primary\":\"#363737\",\"cover_print_secondary\":\"#757575\",\"cover_print_tertiary\":\"#b6b6b6\",\"cover_border_color\":\"#ff6b00\",\"home_hero\":\"newspaper\",\"home_posts\":\"list\",\"background_contrast_1\":\"#f0f0f0\",\"background_contrast_2\":\"#dddddd\",\"background_contrast_3\":\"#b7b7b7\",\"background_contrast_4\":\"#929292\",\"background_contrast_5\":\"#515151\",\"color_theme_detail\":\"#e6e6e6\",\"background_contrast_pop\":\"rgba(255, 107, 0, 0.4)\",\"color_theme_bg_contrast_pop\":\"rgba(255, 107, 0, 0.4)\",\"theme_bg_is_dark\":\"0\",\"background_pop_rgb\":\"255, 107, 0\",\"color_theme_bg_pop_rgb\":\"255, 107, 0\",\"color_theme_accent_rgb\":\"255, 107, 0\"},\"recentEpisodes\":null,\"trackFrontendVisit\":true,\"activeLiveStream\":null,\"freeTrialCoupon\":null,\"defaultCoupon\":null,\"isChatActive\":false,\"publicationPageAlert\":null,\"features\":{},\"browser\":{\"name\":\"Chrome\",\"version\":\"125.0\",\"major\":\"125\"},\"showCookieBanner\":false,\"disabledCookies\":[],\"dd_env\":\"prod\",\"dd_ti\":true}")</script>
|
||
<script nonce="rPMlCqB6HON3nxLwQDKoKw">window._analyticsConfig = JSON.parse("{\"properties\":{\"subdomain\":\"hross\",\"publication_id\":734663,\"has_plans\":false,\"pub_community_enabled\":true,\"is_personal_publication\":false,\"is_subscribed\":false,\"is_free_subscribed\":false,\"is_author\":false,\"is_contributor\":false,\"is_admin\":false,\"is_founding\":false},\"adwordsAccountId\":\"AW-316245675\",\"adwordsEventSendTo\":\"Tf76CKqcyL4DEKuN5pYB\"}")</script>
|
||
|
||
|
||
|
||
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/lib-router.7371871e.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/55188.571db0c6.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/62357.a0731d37.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/53754.d196682b.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/33485.2686bb5d.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/2237.ae8857e4.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/37707.4614ce58.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/9351.41564edd.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/80821.b2140fcd.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/44292.f3dc2b43.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/70291.7aa24e85.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/17499.1820773d.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/57975.765aca5a.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/19714.2f1bdde5.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/48320.4e726ad5.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/93000.f03f24de.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/44014.f579d62b.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/43745.80c75c78.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/60892.92b9fc9c.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/40646.258e49f2.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/87906.d493457b.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/36479.ce61e623.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/17706.015b0f71.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/93977.f1207089.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/37606.b91ab2ef.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/94311.b93f6845.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/89356.66161d1e.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/21262.211a7337.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/47925.24a01d36.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/80220.03bd4c41.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/71505.3dc43e33.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/11100.5d148f2c.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/3663.86d95e8c.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/18725.a5a682c3.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/86118.ff1ec843.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/93519.7fe128ac.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/84828.c78aabc1.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/5075.d6e9f8ec.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/29231.a7af5911.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/56725.2b32bbb6.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/42336.f1c17ded.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/89879.1d0af2b9.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/70793.951c11cb.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/39522.58e078b0.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/53164.dfde36c8.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/74584.94c6b3f1.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/71199.a327e9f4.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/63266.8bb0d59c.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/47358.8f5c5991.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/4492.cb326b80.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/88089.680833b5.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/97348.df6a856d.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/52109.cf3bcc2c.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/56256.8a1bc5dd.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/77410.3f20fb36.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/25058.bdbc4e21.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/58483.3adddb8a.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/94881.0a97506f.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/27386.09a9082f.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/10174.7f0face7.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/92610.a4fc1daf.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/91214.cb10b4b8.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/11244.b723f409.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/99260.28b0ed6a.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/48445.7d5c5ba3.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/76768.9a2f2bae.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/41932.6c688f22.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/12114.979fb38e.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/48409.9732c6f9.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/26252.4f5ae3be.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/53871.2923c5c9.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/18494.588a06d1.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/99068.bd2e1fba.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/91850.79d3f415.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/49047.c7f428fb.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/16075.098bcbcf.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/28856.2eb51db5.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/95396.72d1d844.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/63175.bbf1c283.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/74628.2e8ed950.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/32552.889dd584.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/27313.c287f2d8.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/mainReactRouter.6c265246.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/91507.9b9761ae.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/54770.b40bf629.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/30054.07cd629b.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/78118.35b48b09.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/57051.f37fb930.js" charset="utf-8"></script>
|
||
|
||
<script defer type="module" src="https://substackcdn.com/bundle/static/js/78191.24075434.js" charset="utf-8"></script>
|
||
|
||
|
||
<script nonce="rPMlCqB6HON3nxLwQDKoKw" nomodule>
|
||
(function() {
|
||
var message = 'Your browser does not support modern JavaScript modules. Please upgrade your browser for the best experience.';
|
||
var warningDiv = document.createElement('div');
|
||
warningDiv.style.color = 'red';
|
||
warningDiv.style.padding = '10px';
|
||
warningDiv.style.margin = '10px 0';
|
||
warningDiv.style.border = '1px solid red';
|
||
warningDiv.style.backgroundColor = 'lightyellow';
|
||
warningDiv.innerText = message;
|
||
document.body.prepend(warningDiv);
|
||
})();
|
||
</script>
|
||
|
||
|
||
<!-- Datadog Analytics -->
|
||
<script nonce="rPMlCqB6HON3nxLwQDKoKw">
|
||
(function(h,o,u,n,d) {
|
||
h=h[d]=h[d]||{q:[],onReady:function(c){h.q.push(c)}}
|
||
d=o.createElement(u);d.async=1;d.src=n
|
||
n=o.getElementsByTagName(u)[0];n.parentNode.insertBefore(d,n)
|
||
})(window,document,'script','https://www.datadoghq-browser-agent.com/us1/v5/datadog-rum.js','DD_RUM')
|
||
window.DD_RUM.onReady(function() {
|
||
window.DD_RUM.init({
|
||
clientToken: 'puba71073f072643721169b68f352438710',
|
||
applicationId: '2e321b35-c76b-4073-8d04-cc9a10461793',
|
||
site: 'datadoghq.com',
|
||
service: 'web',
|
||
env: window._preloads.dd_env,
|
||
version: '8b4c00716b2bc0f7ca1fded553014f7e37b5b07a',
|
||
sessionSampleRate: 1,
|
||
sessionReplaySampleRate: 10,
|
||
trackUserInteractions: window._preloads.dd_ti,
|
||
trackResources: true,
|
||
trackLongTasks: true,
|
||
defaultPrivacyLevel: 'mask-user-input',
|
||
allowedTracingUrls: [/https?:\/\/(.+\/.)?substack(cdn)?\.com/]
|
||
});
|
||
})
|
||
</script>
|
||
<!-- End Datadog Analytics -->
|
||
|
||
<!-- Cloudflare Web Analytics -->
|
||
<script defer src="https://static.cloudflareinsights.com/beacon.min.js" data-cf-beacon='{"token": "216309cffb464db4b0e02daf0b8e8060"}'></script>
|
||
<!-- End Cloudflare Web Analytics -->
|
||
|
||
|
||
<!-- Fallback tracking pixels -->
|
||
|
||
|
||
|
||
|
||
<noscript>
|
||
<style>
|
||
#nojs-banner {
|
||
position: fixed;
|
||
bottom: 0;
|
||
left: 0;
|
||
padding: 16px 16px 16px 32px;
|
||
width: 100%;
|
||
box-sizing: border-box;
|
||
background: red;
|
||
color: white;
|
||
font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
|
||
font-size: 13px;
|
||
line-height: 13px;
|
||
}
|
||
#nojs-banner a {
|
||
color: inherit;
|
||
text-decoration: underline;
|
||
}
|
||
</style>
|
||
|
||
<div id="nojs-banner">
|
||
This site requires JavaScript to run correctly. Please <a href="https://enable-javascript.com/" target="_blank">turn on JavaScript</a> or unblock scripts
|
||
</div>
|
||
</noscript>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<script nonce="rPMlCqB6HON3nxLwQDKoKw">(function(){function c(){var b=a.contentDocument||(a.contentWindow&&a.contentWindow.document);if(b){var d=b.createElement('script');d.nonce='rPMlCqB6HON3nxLwQDKoKw';d.innerHTML="window.__CF$cv$params={r:'a39cc9bdafb62f5d',t:'MTc4OTE5MzgzNQ=='};var a=document.createElement('script');a.nonce='rPMlCqB6HON3nxLwQDKoKw';a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();</script></body>
|
||
</html>
|