Spin.js dynamically creates spinning activity indicators that can be used as resolution-independent replacement for AJAX loading GIFs.
This site uses the viewport meta tag which means the content may be optimized for mobile content.
Open graph description entity tag
Indicates that the site provides an interface specifically for searching the document and its related resources.
By adding rel="home" to a hyperlink, a page indicates that the destination of that hyperlink is the homepage of the site in which the current page appears.