Content Management System

MediaWikiMediaWiki

MediaWiki Usage Statistics · Download List of All Websites using MediaWiki

MediaWiki is a free software wiki package originally written for Wikipedia. It is now used by several other projects of the non-profit Wikimedia Foundation and by many other wikis, including The website.

Wiki · Non Profit

Web Hosting Providers
Email Hosting Providers

SPFSPF

SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

Standard

Operating Systems and Servers
Web Servers

nginxnginx

nginx Usage Statistics · Download List of All Websites using nginx

nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.

Syndication Techniques

AtomAtom

Atom Usage Statistics · Download List of All Websites using Atom

Atom Syndication Format is an XML language used for web feeds very similar to RSS.

Really Simple DiscoveryReally Simple Discovery

Really Simple Discovery Usage Statistics · Download List of All Websites using Really Simple Discovery

Really Simple Discovery is a way to help client software find the services needed to read, edit, or "work with" weblogging software.