Get all URLs

Example response

{
  "sites": [
    {
      "site_id": 299,
      "name": "Guardian",
      "urls": [
        {
          "url_id": 914,
          "url": "http://www.theguardian.com/news/gallery/2014/aug/31/the-weekend-in-pictures?view=mobile",
          "label": "gallery",
          "latest_tests": [
            {
              "test_id": "210926_Y2_bc934e4bc38e2a5e53ff4b223c2c6fd1",
              "timestamp": 1632618000,
              "region_id": "eu-west-1",
              "browser_id": "chrome-fibre"
            }
          ]
        }
      ]
    }
  ]
}