Google PageSpeedInstall on your webserver

The PageSpeed modules are open-source server modules that optimize your site automatically.
Oracle Web CacheThe World’s First Automonous Data Warehouse Cloud is Now Available

Automonous Database Cloud-Useash Your Data’s Potential
RackCacheJoin GitHub today

GitHub is home to over 20 million developers working together to host and review code, manage projects, and build software together.
VarnishVarnish HTTP Cache

Now with support for Unix Domain Sockets, better HTTP/2 support, many bugfixes and … Well read more about it all here
W3 Total CacheW3 Total Cache. The Most Complete WordPress Performance Framework

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.
WordPress Super CacheMakes WordPress Faster

WP Super Cache is a static caching plugin for WordPress. It generates html files that are served directly by Apache without processing comparatively heavy PHP scripts. By using this plugin you will speed up your WordPress blog significantly.
WP RocketMake WordPress Load Fast
in a Few Clicks

Recognized as the most powerful caching plugin by WordPress experts
wpCachewpCache WordPress HTTP Cache

wpCache pretends most of Varnish Software’s functionality in a different way of working in its core.
With the power of PHP Zend Engine and Zend Framework in its own management environment.