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Site Info - Wikipedia.org
Overview of web technologies used by Wikipedia.org.
WikipediaWikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
Description on Homepage
A free encyclopedia built collaboratively using wiki software. (Creative Commons Attribution-ShareAlike License).
Description from Alexa
13 January 2001
Number 13 of all websites according to Alexa
Main visitors locations
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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.
The Apache Traffic Server is a caching proxy server derived from the Yahoo Traffic Server.
Apache Traffic Server 8.0.7
Debian is a Linux distribution.
The Wikimedia Foundation is a non-profit organization that operates Wikipedia and other wikis, based in USA.
DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert.
GlobalSign is an IT security service provider, also operating as SSL certificate authority.
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.
Session cookies are temporary cookies, which are deleted when the user closes the browser.
Persistent cookies with an expiration time between 1 day and 1 month.
HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.
Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat.
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/.
Persistent cookies with an expiration time between 1 month and 1 year.
A strong ETag is an HTTP header field for validation of cached web pages, that indicates a byte-for-byte identical page in the cache.
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.
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.
GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.
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