Powered Cache – Caching and Optimization for WordPress – Easily Improve PageSpeed & Web Vitals Score vs SQLite Object Cache

Powered Cache is your comprehensive solution for enhancing WordPress site performance, ensuring a swift and seamless user experience. The Free version provides essential tools to boost your site’s speed while the Premium version unlocks a suite of advanced optimization features. Features ⚡️ Simple and easily configurable: Import and export settings effortlessly. Page Caching: Accelerate page loads, trusted by top-tier websites. Object Caching: Speed up dynamic pageviews. It supports Redis, Memcached, Memcache, and APCu. Page Cache Rule Management: Need advanced caching configurations? Got it covered under advanced options. Details File Optimization: Easily minify and combine CSS, JS files. Eliminate render-blocking resource problems easily. And more Database Optimization: Keep redundant data away from your database. Media Optimization: Enable Lazy Load, replace YouTube videos with thumbnails, control WordPress embeds, remove emoji scripts. Combine Google Fonts: Combine Google Fonts URLs into a single URL and optimize the font loading. Rewrite Support: Automatic .htaccess configuration for the ideal setup. The cached file can be served without executing PHP at all. Mobile Support: Separate cache file for mobile, in case want to use the separate theme for the mobile. Logged-in User Cache: If you have user-specific content or running a membership site, it creates cached results for the logged-in users. CDN Integration: Integrate your website with CDN; you just need to enter CNAME(s) and corresponding zones. Cache Preloading: Creating cached pages in advance. This feature will keep caching layer warm. Prefetched DNS: Resolve domain names before resources get requested. Reduce DNS lookup time. Gzip Support: Compress caching files with gzip. Built-in Extensions: Cloudflare, Heartbeat Multisite Support: You can activate network-wide or site basis. It’s compatible with domain mapping. Smart Cache Purging: Only purge the cache that is affected by the content changes. Compatible: Tested and compatible with popular plugins. Battle Tested: Trusted by enterprise-grade websites. Built-in Extensions Built-in extensions (aka add-ons) shipped with Powered Cache to provide more functionality. Cloudflare: Cloudflare compatibility and functionalities Free Heartbeat: Manage the frequency of the WordPress Heartbeat API. Free Varnish: Varnish cache purging Premium only Google Tracking: Powered Cache will host Google scripts on your server to help satisfy the PageSpeed recommendation. Premium only Facebook Tracking: Powered Cache will host Facebook scripts on your server to help satisfy the PageSpeed recommendation. Premium only Premium Features Explore the powerful capabilities offered by Powered Cache Premium: Critical CSS & Load CSS Asynchronously: Accelerate your page load times by prioritizing essential styles. Remove Unused CSS: Smartly scans your website to identify and eliminate unused CSS rules, optimizing performance. Automatic Image Dimension Assignment: Adds missing dimensions to images to improve layout stability and speed. Link Prefetching: Pre-fetches links to provide a smoother user experience. Image Optimizer: On the fly image compression, including AVIF/WebP format conversion, to enhance load speed. Sitemap Preloading: Automatically visits URLs listed in your sitemap to pre-generate cache, ensuring faster load times for your visitors. Scheduled Database Cleanups: Automates database optimization tasks to maintain peak performance. Varnish Extension: Enhance your site’s caching capabilities with Varnish support. Google & Facebook Tracking Extensions: Host external tracking scripts locally, with automatic updates when the external resource changes. WP-CLI Support: Command-line options available to streamline your workflow. Top-Notch Premium Support: Get high-quality support for any issues you might encounter. Ad-Free Plugin Interface: Enjoy an uncluttered, ad-free plugin admin page. By upgrading to Powered Cache Premium you also get access to one-on-one help from our knowledgeable support team and our extensive documentation site. Learn more about Powered Cache Premium Contributing & Bug Report Bug reports and pull requests are welcome on Github. Some of our features are premium only, please consider before sending PR. Documentation Documentation site: https://docs.poweredcache.com/ Developer Docs: https://poweredcache.github.io/docs/ (Hook reference)

A persistent object cache helps your site perform well. This one uses the widely available SQLite3 extension, and optionally the igbinary and APCu extensions to php. Many hosting services offer those extensions, and they are easy to install on a server you control. What is this about? It’s about making your site’s web server perform better. An object cache does that by reducing the workload on your MariaDB or MySQL database. This is not a page cache; these persistent objects go into a different kind of cache. These objects aren’t chunks of web pages ready for people to view in their browsers, they are data objects for use by the WordPress software. Caches are ubiquitous in computing, and WordPress has its own caching subsystem. Caches contain short-term copies of the results of expensive database lookups or computations, and allow software to use the copy rather than repeating the expensive operation. This plugin (like other object-caching plugins) extends WordPress’s caching subsystem to save those short-term copies from page view to page view. WordPress’s cache happens to be a memoization cache. Without a persistent object cache, every WordPress page view must use your MariaDB or MySQL database server to retrieve everything about your site. When a user requests a page, WordPress starts from scratch and loads everything it needs from your database server. Only then can it deliver content to your user. With a persistent object cache, WordPress immediately loads much of the information it needs. This lightens the load on your database server and delivers content to your users faster. Who should use this? If your site runs on a single web server machine, and that server provides the SQLite3 and igbinary extensions to php, this plugin will almost certainly make your site work faster. And if that server provides the APCu extension, this plugin uses it too. Some hosting providers offer redis cache servers. If your provider offers redis, it may be a good choice. You can use it via the Redis Object Cache plugin. Sites using redis have one SQL database and another non-SQL storage server: redis. Other hosting providers offer memcached, which has the Memcached Object Cache plugin. And some large multipurpose cache plugins, such as the LiteSpeed Cache, also offer object caching based on one of those cache server software packages. The cache-server approach to object caching comes into its own when you have multiple load-balanced web server machines handling your site. SQLite doesn’t work correctly in a multiple-web-server environment. But, for single-server site configurations, SQLite, possibly assisted by APCu, performs well. And the vast majority of sites are single-server. APCu APCu is an in-memory storage medium. It lets php programs, like WordPress, store data in shared memory so it’s very fast to retrieve when needed. If APCu is available on your host server, you can configure this plugin to use it. It reduces the typical cache lookup time to one-fifth or less of the SQLite lookup time, which is itself a few tens of microseconds. Performance counts, especially on busy web sites. Please look at Installation to learn how to configure this plugin to use APCu. The plugin works fast without it, and faster with it. WP-CLI: Even if APCu is in use, caching with SQLite is necessary when your web site uses WP-CLI, because WP-CLI programs do not have access to the APCu cache. This plugin writes all cached data both to APCu and to SQLite and makes sure the two are synchronized. WP-CLI You can control this plugin via WP-CLI once you activate it. Please type this command into your shell for details. wp help sqlite-object-cache Credits Thanks to Till Krüss. His Redis Object Cache plugin serves as a model for this one. And thanks to Ari Stathopoulos and Jonny Harris for reviewing this. Props to Matt Jones for finding and fixing a bug that appeared on a heavily loaded system. Thanks to Massimo Villa for testing help, and to nickchomey for a comprehensive code review. All defects are, of course, entirely the author’s responsibility. And thanks to Jetbrains for the use of their software development tools, especially PhpStorm. It’s hard to imagine how a plugin like this one could be developed without PhpStorm’s tools for exploring epic code bases like WordPress’s. How can I learn more about making my WordPress site more efficient? We offer several plugins to help with your site’s database efficiency. You can read about them here.