{"json_modified": "2016-03-28T08:29:07.419099", "uuid": "67d4e069-f054-43cd-b0ac-9d96076b2fc1", "title": "PerformanceTiming.connectStart", "url": "/en-US/docs/Web/API/PerformanceTiming/connectStart", "tags": ["Property", "Navigation Timing", "Read-only", "PerformanceTiming", "API", "HTML"], "translations": [], "modified": "2015-02-22T10:50:41", "label": "PerformanceTiming.connectStart", "localization_tags": [], "locale": "en-US", "id": 81481, "last_edit": "2015-02-22T10:45:44", "summary": "The <code><strong>PerformanceTiming</strong></code><strong><code>.connectStart</code></strong> read-only property returns an <code>unsigned long long</code> representing the moment, in miliseconds since the UNIX epoch, where the request to open a connection is sent to the network. If the transport layer reports an error and the connection establishment is started again, the last connection establisment start time is given. If a persistent connection is used, the value will be the same as <a href=\"/en-US/docs/Web/API/PerformanceTiming/fetchStart\" title=\"The PerformanceTiming.fetchStart read-only property returns an unsigned long long representing the moment, in miliseconds since the UNIX epoch, the browser is ready to fetch the document using an HTTP request. This moment is before the check to any application cache.\"><code>PerformanceTiming.fetchStart</code></a>.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Summary", "title": "Summary"}, {"id": "Syntax", "title": "Syntax"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/PerformanceTiming/connectStart", "review_tags": []}