Boost provides static page caching for Drupal enabling a very significant performance and scalability boost for sites that receive mostly anonymous traffic. For shared hosting this is your best option in terms of improving performance. On dedicated servers, you may want to consider Varnish instead.
This is an advanced module and takes some extra effort to get it working correctly. Boost requires cron & clean urls to be working; you will also have to edit your .htaccess and robots.txt files.
Boost Handbook for Drupal 7.x: features (included and missing/deprecated), requirements, credits. Installation instructions for Apache. Semi-supported: Instructions for nginx and IIS 7 on Windows Server 2008.
Boost Handbook for Drupal 6.x: features, requirements, credits, installation and settings, tips & tricks and testimonials. Also read the accompanying README.txt for installation and usage instructions. Don't forget to check for Boost errors & warnings on your status report page
For the latest developments, see issues with the needs documentation tag.
4.7 Originally developed by Arto Bendiken
5.x Port by Alexander I. Grafov, developed & maintained by Mike Carper.
6.x Port by Ben Lavender, developed & maintained by Mike Carper. Since 2012, co-maintained by Mathieu Lutfy (bgm).
7.x Port by Mike Carper, co-developed and maintained by Mathieu Lutfy (bgm) and Philip Clarke.
Lists Of Other Caching Modules
Help test development snapshots for a stable 7.x-1.0 release
The Boost 7.x-1.x version is usable with basic features. View open 7.x-1.x issues.