Apache HTTP Server

Apache HTTP Server
Apache HTTP server logo (2016).svg
Original author(s)Robert McCool
Developer(s)Apache Software Foundation
Initial release1995 (1995)[1]
Stable release2.4.46 (August 7, 2020 (2020-08-07)[2]) [±]
Repository Edit this at Wikidata
Written inC,[3] XML[4]
Operating systemUnix-like, Microsoft Windows,[5] OpenVMS
TypeWeb server
LicenseApache License 2.0
Websitehttpd.apache.org Edit this at Wikidata

The Apache HTTP Server, colloquially called Apache (/əˈpæi/ ə-PATCH-ee), is a free and open-source cross-platform web server software, released under the terms of Apache License 2.0. Apache is developed and maintained by an open community of developers under the auspices of the Apache Software Foundation.

The vast majority of Apache HTTP Server instances run on a Linux distribution,[6] but current versions also run on Microsoft Windows,[7] OpenVMS,[8] and a wide variety of Unix-like systems. Past versions also ran on NetWare, OS/2 and other operating systems,[9] including ports to mainframes.[10]

Originally based on the NCSA HTTPd server, development of Apache began in early 1995 after work on the NCSA code stalled. Apache played a key role in the initial growth of the World Wide Web,[11] quickly overtaking NCSA HTTPd as the dominant HTTP server. In 2009, it became the first web server software to serve more than 100 million websites.[12] As of January 2021, Netcraft estimated that Apache served 24.63% of the million busiest websites, while Nginx served 23.21% and Microsoft is in third place at 6.85% (for some of Netcraft's other stats Nginx is ahead of Apache),[13] while according to W3Techs, Apache is ranked first at 35.0% and Nginx second at 33.0% and Cloudflare Server third at 17.3%.[14]

  1. ^ "About the Apache HTTP Server Project". Apache Software Foundation. Archived from the original on 7 June 2008. Retrieved 2008-06-25.
  2. ^ "Releases · apache/httpd · GitHub". GitHub. Retrieved 7 August 2020.
  3. ^ "Archived copy". Archived from the original on 2016-03-02. Retrieved 2016-02-27.CS1 maint: archived copy as title (link)
  4. ^ "Languages". Apache HTTP Server. Black Duck Software. Ohloh. Archived from the original on 7 April 2014. Retrieved 2 April 2014.
  5. ^ "Compiling and Installing". httpd.apache.org. The Apache Software Foundation. Retrieved 9 May 2016.
  6. ^ "OS/Linux Distributions using Apache". secure1.securityspace.com. Retrieved 2018-09-17.
  7. ^ "Platform Specific Notes - Apache HTTP Server Version 2.4". httpd.apache.org. Retrieved 2019-01-21.
  8. ^ "Secure Web Server". vmssoftware.com. Retrieved 2020-10-20.
  9. ^ Cite error: The named reference older was invoked but never defined (see the help page).
  10. ^ "The Apache EBCDIC Port - Apache HTTP Server Version 2.4". httpd.apache.org. Retrieved 2019-08-16.
  11. ^ Netcraft Market Share for Top Servers Across All Domains August 1995 - today (monthly updated)
  12. ^ "February 2009 Web Server Survey". Netcraft. Archived from the original on 26 February 2009. Retrieved 2009-03-29.
  13. ^ "December 2020 Web Server Survey". Netcraft News. Retrieved 2021-01-27.
  14. ^ "Usage Statistics and Market Share of Web Servers, January 2021". w3techs.com. Retrieved 2021-01-27.

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