opengraph - Xml format

opengraph is a xml format created in 2010.

#2459on PLDB

14Years Old

opengraph website
opengraph first developed in Facebook
ogp.me was registered in 2010

Example from the web:

<html prefix="og: http://ogp.me/ns#">
<head>
<title>The Rock (1996)</title>
<meta property="og:title" content="The Rock" />
<meta property="og:type" content="video.movie" />
<meta property="og:url" content="http://www.imdb.com/title/tt0117500/" />
<meta property="og:image" content="http://ia.media-imdb.com/images/rock.jpg" />
...
</head>
...
</html>

Language features

Feature	Supported	Token	Example
Booleans	✓		true false 1 0