This site uses the viewport meta tag which means the content may be optimized for mobile content.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Website using the € symbol on their website - meaning it may accept payment in Euros.
A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
Content Security Policy is best used as defense-in-depth, to reduce the harm caused by content injection attacks.
This page contains a meta robots tag which tells search engines and robots to index or not index the page.
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.
The http-equiv attribute provides an HTTP header for the information/value of the content attribute. The http-equiv attribute can be used to simulate an HTTP response header.