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Site Info - Wikimedia.org
Overview of web technologies used by Wikimedia.org.
WikimediaWikimedia is a global movement whose mission is to bring free educational content to the world.
Description on Homepage
16 March 2003
Number 361 of all websites according to Alexa
Main visitors locations
MediaWiki is an open source wiki-style content management system written in PHP, originally developed for Wikipedia by Lee Daniel Crocker.
PHP is a popular scripting language for creating web pages.
HTML5 is the fifth revision of the HTML standard.
UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.
PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.
JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.
Scalable Vector Graphics (SVG) is an XML-based vector image format.
External Cascading Style Sheets define style rules in a separate CSS file.
Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.
Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.
Persistent cookies with an expiration time between 1 month and 1 year.
HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.
Secure cookies are used only via an encrypted connections, which may increase security.
Gzip (GNU zip) is a file compression algorithm.
A weak ETag is an HTTP header field for validation of cached web pages, that indicates a semantically equivalent page in the cache.
The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address.
HTTP/2 is the second major version of the HTTP network protocol.
HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.
The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.
The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.
The Open Graph protocol, originally developed by Facebook, is an RDFa-based format that enables any web page to become a rich object in a social graph.
DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.
A Twitter Button allows a Twitter user to post a tweet from the visited site.
The Wikimedia Foundation is a non-profit organization that operates Wikipedia and other wikis, based in USA.
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