Lighttpd logo.svg
Original author(s)Jan Kneschke
Initial releaseMarch 2003; 15 years ago (2003-03)
Stable release1.4.52 (November 28, 2018; 17 days ago (2018-11-28)) [±][1]
Preview release2.0 (December 4, 2015; 3 years ago (2015-12-04)) [±]
Repository Edit this at Wikidata
Written inC
Available inEnglish
TypeWeb server
License3-clause BSD

lighttpd (pronounced "lighty")[2] is an open-source web server optimized for speed-critical environments while remaining standards-compliant, secure and flexible.[] 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] Its name is a portmanteau of "light" and "httpd".


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 and open-source software 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.



  • Versions below 1.4.40 do not officially support sending large files from CGI, FastCGI, or proxies[12] unless X-Sendfile is used. This limitation has been removed in lighttpd 1.4.40.[13]
  • No SPDY or HTTP/2 support


Lighttpd is used by a number of high-traffic websites, among them are Bloglines and xkcd.[14] It was used in the past by Meebo and YouTube.[15][better source needed] The Wikimedia Foundation also runs Lighttpd servers.[16][17][18][19]

See also


  1. ^ "1.4.52". 2018-11-28. Retrieved .
  2. ^ "lighttpd fly light". Retrieved . all of these describe lighttpd (pron. lighty).
  3. ^ "lighttpd: Story". Retrieved 2008.
  4. ^ "Powered By lighttpd". Lighttpd wiki. Retrieved 2008.
  5. ^ "Web Server Performance Comparison". Retrieved 2012..
  6. ^ Gabriel Kerneis and Juliusz Chroboczek. Are events fast?. PPS technical report, University of Paris 7. 2009.
  7. ^ "Downloads @ WLMP Project". Retrieved . LightTPD webserver for Windows Systems.
  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)
  9. ^ Lighttpd - Bug #1101: SSI include virtual does not run cgi - lighty labs
  10. ^
  11. ^ "lighttpd releases". Retrieved 2010.
  12. ^ "Memory usage increases when proxy+ssl+large file". lighttpd bug tracker. Retrieved .
  13. ^ "lighty should buffer responses (after it grows above certain size) on disk". lighttpd bug tracker. Retrieved .
  14. ^ "Lighttpd Web Server Usage". WebTechster. Retrieved .
  15. ^ "Fly Light With Lighttpd Web Server". ServerWatch. Archived from the original on 31 March 2014. Retrieved .
  16. ^ Brion Vibber (2008-08-26). "Apache mod_php in wikipedia". Wikimedia wikitech-l mailing list. Retrieved .
  17. ^ Tim Starling (2008-08-27). "Apache mod_php in wikipedia". Wikimedia wikitech-l mailing list. Retrieved .
  18. ^ Domas Mitzuas (2008-08-27). "Apache mod_php in wikipedia". Wikimedia wikitech-l mailing list. Retrieved .
  19. ^ "Powered by Lighttpd". The official site. 2007-04-04. Retrieved . 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.

Further reading

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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