This site uses the viewport meta tag which means the content may be optimized for mobile content.
Akamai provides a distributed computing platform for global Internet content and application delivery.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Akamai's network is one of the world's largest distributed-computing platforms, responsible for serving 30 percent of all web traffic.
Discourse is the 100% open source discussion platform built for the next decade of the Internet. It works as a mailing list, a discussion forum and a long-form chat room.Discourse is a simple, flat forum, where replies flow down the page in a line.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.
Meta descriptions are HTML attributes that provide concise explanations of the contents of web pages. Meta descriptions are commonly used on search engine result pages (SERPs) to display preview snippets for a given page.
Sites who has this tag are verfied by google to use WebMaster tools
Indicates that the site provides an interface specifically for searching the document and its related resources.
Chrome for Android, since version 39 supports the "theme-color" meta tag to allow websites control the background color of the tab's UI header.
Open graph description entity tag
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook