{"json_modified": "2016-10-25T19:57:54.484488", "uuid": "5fb5620f-0fab-4556-8dd5-c3730bcd3755", "title": "Using the Resource Timing API", "url": "/en-US/docs/Web/API/Resource_Timing_API/Using_the_Resource_Timing_API", "tags": ["Guide", "Web Performance"], "translations": [], "modified": "2016-10-25T19:57:54", "label": "Using the Resource Timing API", "localization_tags": [], "locale": "en-US", "id": 169405, "last_edit": "2016-10-25T19:57:46", "summary": "The <strong><code>Resource Timing</code></strong> interfaces enable retrieving and analyzing detailed network timing data regarding the loading of an application's <em>resource(s)</em>. An application can use the timing metrics to determine, for example, the length of time it takes to fetch a specific resource such as an <a href=\"/en-US/docs/Web/API/XMLHttpRequest\" title=\"XMLHttpRequest is an&#xA0;API that provides client functionality for transferring data between a client and a server. It provides an easy way to retrieve data from a URL without having to do a full page refresh. This enables a Web page to update just a part of the page without disrupting what the user is doing.\"><code>XMLHttpRequest</code></a>, <a href=\"/en-US/docs/Web/SVG/Element/SVG\" title=\"The svg element can be used to embed an SVG fragment inside the current document (for example, an HTML document). This SVG fragment has its own viewport and coordinate system.\"><code>&lt;SVG&gt;</code></a>, image, script, etc.).", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Resource_loading_phases", "title": "Resource loading phases"}, {"id": "Timing_resource_loading_phases", "title": "Timing resource loading phases"}, {"id": "Size_matters", "title": "Size matters?"}, {"id": "Managing_the_resource_buffer", "title": "Managing the resource buffer"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/Resource_Timing_API/Using_the_Resource_Timing_API", "review_tags": ["technical"]}