SpeedyCache Pro extends the free SpeedyCache plugin for WordPress, which must also be installed. Its page cache stores static files on the server and serves them to most visitors, reducing repeated database queries. Pro includes controls for images, fonts, scripts, asset delivery, and site maintenance.

Cache pages and manage exclusions

You can preload pages at regular intervals, set a cache lifespan to schedule deletion, and clear the cache when posts are created or updated. Mobile Cache can shop a separate version for mobile devices. Exclusions let you keep selected pages, user agents, cookies, CSS, or JavaScript out of the cache. Cache statistics cover desktop and mobile files, as well as combined or minified CSS and JavaScript. If Varnish is in use, SpeedyCache can purge its cache when the SpeedyCache cache is purged.

Choose when page resources load

CSS and JavaScript controls can minify files to reduce their size or combine them to reduce requests. Pro can also minify HTML and inline CSS and JavaScript, delay JavaScript until user interaction, combine footer scripts with Advanced Combine JS, and defer render-blocking JavaScript. Instant Page loads a page just before a user clicks its link. Lazy loading waits to load selected resources until they enter the viewport.

For styles and images, Pro can extract Critical CSS for the visible part of a page, remove unused CSS, add dimensions to images missing a width or height, lazy render HTML components outside the viewport, and preload critical images above the fold. Preload Resources and Preconnect can prepare selected resources or connections in advance.

Optimize images and fonts

Image Optimization converts images to WebP using GD, Imagick, or cwebp. Google Fonts can load asynchronously and be cached locally. Display Swap keeps text visible while a font loads. DNS prefetch can resolve domain names in advance, and the font-rendering option adds a text-rendering property that prioritizes rendering speed.

Manage delivery and website maintenance

CDN support rewrites static asset URLs for delivery through a content delivery network, and the extension can purge Cloudflare cache. GZIP compression reduces the size of files sent from the server, while browser caching lets returning visitors reuse site resources. Other controls include disabling emoji assets, caching Gravatars on your server, and Redis object caching.

Database Cleanup can remove post revisions, trashed content, spam and trashed comments, trackbacks, pingbacks, and transient options. Bloat Remover includes options for WordPress and WooCommerce functions such as XML-RPC, jQuery Migrate, oEmbeds, Heartbeat, and cart fragments.

A practical setup starts with cache behavior and exclusions, followed by the image, font, CSS, HTML, and JavaScript options that suit the site. Enable loading changes selectively and review pages or scripts that should not be cached. Professional support is available for Pro customers.