Cache Shark

Cache Shark saves a static copy of each public page and serves it to visitors before WordPress, your theme and your plugins have to run. Pages load faster and your server does less work.

What it does

• Page caching. Visitors get a saved copy of the page, served by a lightweight drop-in that loads before WordPress.
• Automatic cache clearing. When you publish, update, trash or comment on a post, only the affected pages are cleared: the post, the home page, its categories, tags, author page and date archives. Changing your theme, menus, widgets or permalinks clears everything.
• Preloading. After the cache is cleared, pages are warmed in the background from your sitemap, a few at a time, so visitors rarely hit an uncached page.
• GZIP compression and browser caching rules for Apache and LiteSpeed servers.
• Expired page cleanup keeps the cache folder from growing forever.

Safe by default

Pages are never cached for logged-in users, commenters, password-protected posts, search results, 404 pages, feeds, the REST API, AJAX requests, or any request with a query string (marketing parameters such as utm_source are ignored). WooCommerce cart, checkout and account pages are never cached, and visitors with items in their cart are always served live pages. You can add your own excluded URLs and cookies.

Not included yet

CSS and JavaScript minification, delayed JavaScript, lazy loading, critical CSS, CDN and database cleanup are planned for later releases. Multisite network activation is not supported yet.

Privacy

Cache Shark does not collect data, does not use cookies and does not contact any external service. Preloading only requests pages from your own site.