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Lighttpd logo.png
Original author(s) Jan Kneschke
Developer(s) Lighttpd Developers
Initial release March 2003; 18 years ago (2003-03)
Stable release 1.4.39 (January 2, 2016; 5 years ago (2016-01-02)) [±][1]
Preview release 1.5.0 r2698 (December 7, 2009; 11 years ago (2009-12-07)) [±]
Written in C
Operating system Cross-platform
Available in English
Type Web server
License 3-clause BSD
Website {{#property:P856}}

lighttpd (pronounced "lighty")[2] is an open-source web server optimized for speed-critical environments while remaining standards-compliant, secure and flexible.[citation needed] It was originally written by Jan Kneschke as a proof-of-concept of the c10k problem – how to handle 10,000 connections in parallel on one server,[3] but has gained worldwide popularity.[4]


The low memory footprint (compared to other web servers),[5] small CPU load and speed optimizations[6] make lighttpd suitable for servers that are suffering load problems, or for serving static media separately from dynamic content. lighttpd is free software/open source, and is distributed under the BSD license. It runs natively on Unix-like operating systems as well as Microsoft Windows.[7]

Application support

lighttpd supports the FastCGI, SCGI and CGI interfaces to external programs, allowing web applications written in any programming language to be used with the server. As a particularly popular language, PHP performance has received special attention. Lighttpd's FastCGI can be configured to support PHP with opcode caches (like APC) properly and efficiently. Additionally, it has received attention from its popularity within the Python, Perl, Ruby and Lua communities. Lighttpd also supports WebDNA, the resilient in-memory database system designed to build database-driven websites. It is a popular web server for the Catalyst and Ruby on Rails web frameworks. Lighttpd does not support ISAPI.



Lighttpd (1.4.x) officially does not support sending large files from CGI, FastCGI, or proxies [12] unless X-Sendfile is used.


The LAMP software bundle (here additionally with Squid). A high performance and high-availability solution for a hostile environment

Lighttpd is used by a number of high-traffic websites, among them are Bloglines and Xkcd.[13] It was used in the past by Meebo and YouTube.[14][better source needed] Wikimedia also runs Lighttpd servers.[15][16][17][18]

See also


  1. "1.4.39". 2016-01-02. Retrieved 2016-01-02.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. "lighttpd fly light". Retrieved 2010-06-13. all of these describe lighttpd (pron. lighty)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. "lighttpd: Story". Retrieved 22 December 2008.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  4. "Powered By lighttpd". Lighttpd wiki. Retrieved 22 December 2008.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  5. "Web Server Performance Comparison". Retrieved 15 March 2012.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  6. Gabriel Kerneis and Juliusz Chroboczek. Are events fast?. PPS technical report, University of Paris 7. 2009.
  7. "Downloads @ WLMP Project". Retrieved 2011-03-27. LightTPD webserver for Windows Systems<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  8. Gammo, Louay; Brecht, Tim; Shukla, Amol; Pariag, David (2004). "Comparing and Evaluating epoll, select, and poll Event Mechanisms". Linux Symposium. University of Waterloo. p. 215. Missing or empty |url= (help)<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  9. Lighttpd - Bug #1101: SSI include virtual does not run cgi – lighty labs
  11. "lighttpd releases". Retrieved 20 June 2010.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  12. "Memory usage increases when proxy+ssl+large file". lighttpd bug tracker. Retrieved 2011-04-11.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  13. "Lighttpd Web Server Usage". WebTechster. Retrieved 2014-03-26.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  14. "Fly Light With Lighttpd Web Server". ServerWatch. Archived from the original on 31 March 2014. Retrieved 2008-02-12.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  15. Brion Vibber (2008-08-26). "Apache mod_php in wikipedia". Wikimedia wikitech-l mailing list. Retrieved 2008-08-27.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  16. Tim Starling (2008-08-27). "Apache mod_php in wikipedia". Wikimedia wikitech-l mailing list. Retrieved 2008-08-27.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  17. Domas Mitzuas (2008-08-27). "Apache mod_php in wikipedia". Wikimedia wikitech-l mailing list. Retrieved 2008-08-27.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  18. "Powered by Lighttpd". The official site. 2007-04-04. Retrieved 2008-12-22. lighttpd is used by many well-known sites. The typical scenario is using lighttpd as off-load server to push out static content and leave the complex work to another server.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>


External links