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W3 Total Cache. The Most Complete WordPress Performance Framework

Improve Site Performance Via Caching

W3 Total Cache improves the user experience of your site by improving your server performance, caching every aspect of your site, reducing the download times and providing transparent content delivery network (CDN) integration.

Improved page load times

Reduced page load times can increase visitor time on site and number of pages viewed, in addition to improved conversion rates.

Optimization score improvements

Dramatic improvements in YSlow and Google Page speed scores possible when W3 Total Cache is fully configured.

Improved user experience

Page cache and Browser cache configuration gives visitors perception of “instant” repeat page views.

Significant bandwidth savings

Up to 80% Bandwidth savings via Minify and HTTP compression of HTML, CSS, JavaScript and RSS feeds.

The Most Complete WordPress Performance Framework

The fastest and most complete WordPress performance optimization plugin. Trusted by many popular blogs like: mashable.com, pearsonified.com, noupe.com, webdesignerdepot.com, freelanceswitch.com, briansolis.com, tutsplus.com, yoast.com, css3.info and others — W3 Total Cache improves the user experience of your blog by improving your server performance, caching every aspect of your site, reducing the download time of your theme and providing transparent content delivery network (CDN) integration.

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Why is W3 Total Cache Better Than Other Cache Plugins?

It's a complete framework. Many of the popular cache plugins available do a great job at achieving some performance aims. Our plugin remedies numerous performance reducing aspects of any web site going far beyond merely reducing CPU usage (load) and bandwidth consumption for HTML pages alone.

Equally important, the plugin requires no theme modifications, modifications to your .htaccess (mod_rewrite rules) or programming compromises to get started. Most importantly, it's the only plugin designed to optimize all practical hosting environments small or large. The options are many and setup is easy.

Free Download

0.9.7

  • Fixed minified files not being hosted by CDN when enabled if "host minified files" is disabled
  • Fixed warning thrown when purge all was selected (via nigrosimone)
  • Fixed undefined offset error in fragment cache
  • Fixed MaxCDN test button failure when debug mode is enabled
  • Fixed purging of feeds when cache feeds option is enabeld
  • Improved handling of errors when full site delivery isn’t set
  • Improved nginx.conf to support xml caching
  • Improved nginx.conf to support HSTS for static files
  • Improved minify’s handling of query strings
  • Improved database caching, frequent wp_options no longer flush posts or comments data
  • Improved Limelight Networks CDN integration
  • Improved FAQ, they’re now hosted in the GitHub public repository
  • Improved handling for /*<![CDATA[*/ in HTML minify engine
  • Imporved garbage collection for basic disk caching
  • Improved HSTS support (via Dave Welsh)
  • Improved reliabilty of CSS embed options
  • Improved New Relic requirements in compatibility test
  • Added StackPath CDN integration (including full site delivery)
  • Added support for page cache priming via WP-CLI via prime function
  • Added filter support for managing cache groups
  • Added API for flushing individual cache groups via flush_group function
  • Added purge support for JSON cache e.g. cached REST API requests
  • Added filter support for managing database cache settings
  • Added filter support before (w3tc_process_content) and after (w3tc_processed_content) a cache object is created
  • Added compatibility for AMPforWP plugin
  • Added JSON caching support for Pro subscribers
  • Added additional security headers (via amiga-500)

0.9.6

  • Fixed anonymous usage tracking, default to disabled
  • Fixed incorrect minify cache data written if target directory missing
  • Fixed empty minify cache file written when file locking enabled
  • Fixed missing commas in CSS (via nigrosimone)
  • Fixed typo in object cache engine (via Furniel)
  • Fixed incorrect reuse of redis connections when persistent connections option enabled
  • Fixed reliability of Google Drive (via jikamens)
  • Fixed handling of UTF-8 encoded files by writing them in binary (via jikamens)
  • Improved Full Site Delivery configuration user flow on the General and CDN settings screens
  • Improved content type matching and cache hits as a result
  • Improved minify file locking logic
  • Improved visual langage of the compatibility test (via Furniel)
  • Improved configuration file management
  • Improved MaxCDN set up wizard
  • Improved page cache’s accepted query string handling to handle optional values and add support for disk enhanced mode (via amiga-500, nigrosimone)
  • Improved handling of timeouts to origin push CDN proviers
  • Added HTTP/2 push headers for disk enhanced page caching (via nigrosimone)
  • Added X-Forwarded-Proto header for use cases like HTTPS recognition behind proxies or load balancers
  • Added multiple CDN support i.e. static file objects and pages, posts, feeds, API responses etc to use different respective CDN providers
  • Added page caching by cookie name or value (sponsored by SQweb)
  • Added toggle for CORS header to improve inter-operatbility with various CDN providers
  • Added support for CDN hosted media to media library (inspired by amiga-500)
  • Added object caching of AJAX calls (via andyexeter)
  • Enterprise features are now available to Pro subscribers! Including reading from multiple databases concurrently and purging caches across multiple hosts via a Message Bus

0.9.5.4

  • Fixed regression with browser caching and query strings

0.9.5.3

  • Fixed handling of HTTP compressed documents in PHP v5.3 (via amiga-500)
  • Fixed a bug with accelerated mobile pages (via nigrosimone)
  • Improved reliability of minify in manual mode
  • Improved JavaScript interoperability with CDATA use cases
  • Improved file name generation on Windows for IIS servers
  • Improved handling of # in URLs
  • Improved handling of exclusions for e-commerce in Genesis Framework
  • Improved handling of headers for Microsoft Azure
  • Improved functionality with existing Cloudfront Distributions when configuring Full Site Delivery
  • Improved minify debug logging
  • Improved handling of URLs that omit the protocol
  • Improved handling of custom files with CDN (via amiga-500)
  • Updated CSSTidy library (via nigrosimone and amiga-500)
  • Added Swarmify Video Optimization Extension [Hat tip the Swarmify Team]
  • Added flushing of AMP pages

0.9.5.2

  • Fixed security issue by protecting configuration data by adding .php to relevant files
  • Fixed security issue with the creation of dot folders that could be abused
  • Fixed handling HTTP compression for uncached pages
  • Fixed handling of .svgz files
  • Added expiration headers to webP images
  • Added support for Microsoft Azure’s latest API
  • Added ability to cache WP Admin. Recommended setting, is off. (Improved WP Admin performance with object caching enabled)
  • Added HTTP/2 Push support for minified files
  • Added option management support for wp-cli
  • Improved handling of uncompressed minified files
  • Improved handling of purging of modified pages / posts
  • Improved compatibility with Rackspace Cloud Files
  • Improved initial CDN configuration reliability
  • Improved reliability of object caching
  • Improved PHP 7.0 compatibility
  • Improved PHP 4.3 compatibility
  • Improved HTTP/2 support
  • Improved CSS embed handling
  • Improved reliability of object cache, transients now fallback to database
  • Improved handling of cached http compressed objects

0.9.5.1

  • Fixed missing namespace, which caused issues with other implementations of Google APIs
  • Fixed handling Cloudflare zone list being incomplete for users with many zones
  • Added extension to support Accelerated Mobile Pages (AMP)
  • Added notification for users that are still using PHP 5.2 (end of life in 2011)
  • Improved default settings
  • Improved compatibility with Yoast SEO sitemap caching
  • Improved compatability with Jetpack
  • Improved directory handling on IIS
  • Improved backwards compatibility for 3rd party implementations against legacy W3TC functions

0.9.5

  • Fixed XSS vulnerability
  • Fixed issues with dismissing overlays
  • Fixed handling of tilde in URLs
  • Fixed issue with HTTP compression header when using mfunc calls
  • Fixed cache ID issue with minify in network mode
  • Fixed rare issue of caching empty document when some PHP errors occur in themes or plugins
  • Fixed caching of query strings
  • Added support for APCu Opcode Cache
  • Added support for Redis
  • Added support for Google Drive
  • Added support for Amazon S3-compatible stroage services
  • Added support for PECL memcached
  • Added support for srcset elements
  • Added support for Rackspace CDN Origin Pull
  • Added support for minification of external fonts
  • Added support for WOFF2 font format
  • Added support for FTPS (FTP-SSL, S-FTP)
  • Added YUI Compressor’s PHP Port of the CSS minifier
  • Added Narcissus’ JS minifier
  • Added purge of parent page when attachments are added or updated
  • Added Highwinds CDN provider
  • Added "Validate Timestamps" option for compatible opcode caches functions like apc.stat are enabled
  • Added Full Site Delivery for Pro subscribers
  • Added HTTP Strict Transport Security (HSTS) support
  • Added a sample extension for developers to reference
  • Added Rackspace Cloud Files Multi-Region Support
  • Added more support for exclusions to database cache
  • Added more optionality to minifiers
  • Added WPML Performance Extension
  • Added use of [namespace](http://php.net/manual/en/language.namespaces.rationale.php) which creates mininum dependency on version PHP 5.3
  • Improved PHP 5.6 compatibility
  • Improved PHP 7 compatibility
  • Improved performance menu in admin bar, including purging of specific cache engines and more
  • Improved SSL interoperability
  • Improved reliablity of test buttons
  • Improved nomenclature of caching files for higher cache hit rates
  • Improved nginx compatibility
  • Improved WP CLI support
  • Improved Cloudflare compatibility (now using latest APIs), Cloudflare must be re-authorized
  • Improved AWS API compatibility (now using latest APIs)
  • Improved Rackspace Cloud Files compatibility (now using latest APIs)
  • Improved page cache purge for extensions like cloudflare and other reverse proxy use cases
  • Improved extension framework functionality
  • Improved compatibility of headers like ETag and content encoding
  • Improved template fragment caching
  • Improved notifications, warnings and errors
  • Improved moble user agents detection
  • Improved security with nonces and form elements
  • Improved security throughout the codebase
  • Improved detail of debug messages
  • Improved Amazon SNS security (validation)
  • Improved minify’s ability to match script tags without type attribute

0.9.4

  • Fixed undefined w3tc_button_link
  • Fixed support and other form submissions
  • Fixed extension enabled key error
  • Fixed Test CDN errors
  • Fixed trailing slashes in custom wp content path and Minify
  • Fixed WP_PLUGIN_DIR not being available when object-cache.php is loaded and W3TC constant not set
  • Fixed Minify Auto and restructuring of JS code placement on page
  • Fixed remove / replace drop in file on plugins page
  • Fixed false positive check for legacy code
  • Fixed deprecated wpdb escape
  • Fixed Fragment Caching and APC anomalies
  • Fixed cached configs causing 500 error on interrupted file writes
  • Fixed readfile errors on servers with the functionality disabled
  • Fixed false positives for license key verification
  • Fixed debug information not printed on cached pages
  • Fixed backwards compatibility and flushing and added doing it wrong notification
  • Fixed "Prevent caching of objects after settings change"
  • Fixed "Use late init" being shown as enabled with Disc:Enhanced
  • Fixed missing param in APC cache method declaration
  • Fixed user roles property not begin an array
  • Fixed adding empty Vary header
  • Fixed notice on failed upgrade licencing check
  • Fixed Database Cache description text
  • Fixed duplicate bb10 agents
  • Fixed settings link in Minify Auto notification
  • Fixed notice with undefined constant
  • Fixed nginx configuration and Referrer, User Groups setting
  • Fixed Genesis settings and Suhosin field name limit error
  • Fixed Genesis and Fragment Caching (caching categories etc)
  • Fixed CDN being enabled when creating NetDNA / MaxCDN pull zone
  • Fixed NewRelic related notice in compatibility popup
  • Fixed trailing slash issue in filename to url conversion
  • Fixed issue with wp in subdirectory and relative minimal manual urls
  • Fixed issue with widget styling
  • Fixed issue with Purge All button action
  • Fixed issue with exporting of settings
  • Fixed issue with plugin interferring with preview theme
  • Fixed issue with malformed config files
  • Added caching of list of posts pages (tags, categories etc) to Genesis extension a long with flush it checkbox
  • Added typecasting on expiration time in object cache drop-in
  • Added capability check for save options
  • Added FeedBurner extension
  • Added woff support to Browser Cache
  • Added new CloudFlare IPs
  • Added support for WordPress defined charset and collate in CDN queue table creation
  • Added WordPress SEO by Yoast extension
  • Added *.less to CDN theme uploads and MIME
  • Added default settings for MaxCDN Pull Zone creation
  • Added call to change MaxCDN canonical header setting to match plugin setting
  • Added one button default pull zone creation to MaxCDN without refresh
  • Added MaxCDN authorization validation
  • Added whitelist IPs notification for MaxCDN
  • Added support for use of existing zones without refresh
  • Added new mime types
  • Added support for separate domains for frontend and admin backend
  • Added CloudFlare as an extension
  • Added nofollow to blogroll links
  • Added DEV mode support to PRO version
  • Added EDGE MODE functionality
  • Improved wrapper functions in plugins.php for plugin / theme authors
  • Improved reliability of NetDNA / MaxCDN API calls by using WP HTTP and not cURL
  • Improved Fragment Caching debug information
  • Improved preview mode, removed query string requirement
  • Improved FAQ structure
  • Improved empty minify/pgcache cache notification when using CDN
  • Improved default settings for MaxCDN zone creation
  • Improved CDN queue performance
  • Improved blogmap url sanitation
  • Improved MaxCDN automatic zone creation process
  • Improved license key saving and Pro mode activation on Pro license purchases
  • Updated EDGE MODE: Full site mirroring support for MaxCDN
  • Updated translations