[
  {
    "idx": 1,
    "url": "https://charity.wtf/2016/05/31/operational-best-practices-serverless/",
    "ok": true,
    "error": null
  },
  {
    "idx": 2,
    "url": "https://m.facebook.com/notes/facebook-engineering/making-facebook-self-healing/10150275248698920/",
    "ok": false,
    "error": "HTTP 400"
  },
  {
    "idx": 3,
    "url": "https://blog.codeship.com/autoscaling-on-complex-telemetry/",
    "ok": true,
    "error": null
  },
  {
    "idx": 4,
    "url": "http://www.theregister.co.uk/2016/05/30/best_practices_tech_processes/",
    "ok": true,
    "error": null
  },
  {
    "idx": 5,
    "url": "https://medium.com/production-ready/simplicity-a-prerequisite-for-reliability-8d000f8d18df#.r5nktercg",
    "ok": false,
    "error": "HTTP 403"
  }
]