[
  {
    "idx": 1,
    "url": "http://www.prweb.com/releases/2017/02/prweb14061034.htm",
    "ok": true,
    "error": null
  },
  {
    "idx": 2,
    "url": "https://www.pagerduty.com/blog/cost-downtime/",
    "ok": false,
    "error": "HTTP 404"
  },
  {
    "idx": 3,
    "url": "https://blog.ably.io/honest-status-reporting-and-aws-service-status-truth-in-a-post-truth-world-8b9a31c8cc90#.vmxj5nuep",
    "ok": true,
    "error": null
  },
  {
    "idx": 4,
    "url": "https://about.gitlab.com/2017/02/10/postmortem-of-database-outage-of-january-31/",
    "ok": true,
    "error": null
  },
  {
    "idx": 5,
    "url": "https://jepsen.io/analyses/mongodb-3-4-0-rc3",
    "ok": true,
    "error": null
  }
]