Facebook shared customized tag

Add meta tag on the target page, and facebook share page can show the customized thumbnail with subject and link information.
<meta property="og:title" content="topic"/>
<meta property="og:type" content="article" />
<meta property="og:url" content="http://www.xxx.com/" />
<meta property="og:image" content="http://www.xxx.com/image/image.jpg" />
<meta property="og:site_name" content="www.xxx.com" />
<meta property="og:description" content="descriptionxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"