Cache eligible WordPress requests

Comet Cache Pro saves snapshots of supported pages, posts, categories, links, archives, feeds, and other content. When a request matches a usable cache file, the plugin can serve that file instead of repeating database connections and PHP processing. Set cache behavior and expiration in the WordPress dashboard.

By default, cached pages are not served to logged-in visitors or recent commenters. Administrative and login pages, POST, PUT, and DELETE requests, GET requests with query strings, and CLI processes are also excluded. Pro adds optional logged-in visitor caching, which can suit membership sites.

Control cache lifetime and clearing

Configure automatic and intelligent clearing for posts, pages, custom post types, categories, tags, links, themes, users, archives, feeds, and other supported content. Pro can also clear a specified list of custom URLs, execute custom PHP when the cache is cleared, and grant clearing permissions by role or capability.

• Set an automatic expiration time and tailor the caching engine with a dynamic version salt.
• Use the admin-bar Clear Cache button, or disable it.
• Import and export Comet Cache configuration documents.
• Run the Auto-Cache Engine to pre-cache the website at 15-minute intervals.

Review cache activity and tune delivery

Cache statistics and charts cover the page cache, HTML Compressor cache, PHP OPCache, and server health. Server Load Monitoring can pause cache regeneration when the configured maximum server-load average is exceeded.

• HTML Compressor can combine and compress CSS, JavaScript, and HTML.
• Apache settings include web-server GZIP compression, browser caching, and canonical URL rules.
• Static CDN Filters can serve selected or all static files from a chosen CDN, with multiple host names, domain sharding, and multisite network support.
• Mobile Mode can create multiple cache versions for adaptive designs. Multisite Host Exclusion Patterns can exclude selected child blogs.
• Other controls cover client-side caching, 404 responses, RSS, RDF and Atom feeds, query strings, and URI, user-agent, and referrer exclusion patterns with wildcard support.

Comet Cache Pro also works with WP-CLI, ManageWP, and InfiniteWP, and includes an updater for the WordPress dashboard. On a multisite network, centralized settings can be changed by a Super Administrator on the main website.

Install and enable

Comet Cache Pro is self-contained and does not require Comet Cache Lite. If Lite is installed, deactivate and delete it first. In WordPress, go to Dashboard > Plugins > Add New, select Upload Plugin, select the Pro ZIP file, and install it. Activate the extension, then open Dashboard > Comet Cache > Plugin Options > Enable/Disable and enable caching. The listed requirements are PHP 5.4+ and Apache 2.1+.