page_title: Facebook Platform
section_title: Open Graph protocol
hierarchical_section_title: Facebook Platform / High-level Platform components / Open Graph protocol
caption_attribution_description: English: A Facebook's Open Graph protocol logo.
context_page_description: The Facebook Platform is the set of services, tools, and products provided by the social networking service Facebook for third-party developers to create their own applications and services that access data in Facebook.
  The current Facebook Platform was launched in 2010. The platform offers a set of programming interfaces and tools which enable developers to integrate with the open "social graph" of personal relations and other things like songs, places, and Facebook pages. Applications on facebook.com, external websites, and devices are all allowed to access the graph.
context_section_description: The Open Graph protocol enables developers to integrate their pages into Facebook's global mapping/tracking tool Social Graph. These pages gain the functionality of other graph objects including profile links and stream updates for connected users.  OpenGraph tags in HTML5 might look like this:
  <meta property="og:title" content="Example title of article"><meta property="og:site_name" content="example.com website"><meta property="og:type" content="article"><meta property="og:url" content="http://example.com/example-title-of-article"><meta property="og:image" content="http://example.com/article_thumbnail.jpg"><meta property="og:image" content="http://example.com/website_logo.png"><meta property="og:description" content="This example article is an example of OpenGraph protocol.">
caption: Open Graph protocol logo
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