Scalability Pro v6.26.5 - Make WordPress Scalable
Make WordPress and WooCommerce scalable. Years of performance optimisation and scalability expertise distilled into one plugin.
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Scalability Pro is our core WordPress optimisation plugin. As we complete performance analysis jobs for clients, we add optimisations for various themes and third-party plugins into Scalability Pro. The only thing we can’t optimise inside Scalability Pro is search and filters, which is why we made Super Speedy Search and Super Speedy Filters to complement Scalability Pro.
- Future proof your website – a scalable site will not slow down as your site gets bigger
- Reduce server cost – Scalability Pro speeds up many slow SQL queries that run through WP_Query, for example, the main query on your archive pages (shop or posts or custom post types)
- Easy to use – includes one-click custom indexes, automatic front-end query rewrites and options to disable unused wp-admin features to speed up your back-end
- Save time – includes optimisations to speed up imports and exports
- Includes optimisations to speed up slow themes, e.g. Avada and speed boosts discovered through our Performance Analysis Service
- Good for Googlebot, admins and users – Speed up imports, archives, wp-admin, XML sitemaps and slow themes
- Never worry about performance or scalability again – purchase includes access to our Discord Server so you can chat directly to Dave Hilditch about your site performance
Recent releases
Release history
- the file cache handler initialising the WordPress filesystem on every request at plugins_loaded - on hosts where WordPress cannot write files directly (FTP/SSH credential hosts) this echoed the WordPress connection-details form into every page load, WP-CLI command, cron run and REST request. The filesystem is now initialised only when a cache method is actually used, and the credentials prompt has been removed entirely (if credential-less filesystem access is unavailable, file caching is simply reported as unavailable and callers fall back to other cache storage)
- a potential fatal error in the cache handler when the filesystem could not be initialised (cache methods now fail gracefully instead of calling methods on a null filesystem object)
- cache expiry never being detected on read - the expiry timestamp comparison compared a number against a date string, so expired cache files were still served until the cleanup cron removed them
- Thanks to @CraigM for reporting the filesystem initialisation issue with a superb writeup
View changelog
- a "Recheck Licenses" button above the licence table on the Super Speedy Settings page so customers have a clear way to refresh licence status after a renewal or upgrade without scrolling down to the licence-key field. The button is disabled until a licence key is entered/saved and re-enables as you type.
- The Recheck flow now also force-bypasses the auth-server's own 1-hour licence cache (via a `force=1` flag on the `wpiapi/check_product_key` call), so renewals/upgrades that completed less than an hour before a recheck no longer show as expired/exceeded. Normal admin page loads continue to use both caches as before — only an explicit Recheck click bypasses them. (Lives in the `super-speedy-settings` submodule, so the change propagates to every Super Speedy plugin.)
View changelog
- `wp_error_added` callback in Super Speedy Settings re-added the same WP_Error without unhooking, causing a stack overflow whenever another plugin (e.g. a GitHub update check) triggered a WP_Error with a JSON body containing a `message` field; the handler now unhooks during mutation, skips errors already enhanced, and only enhances errors originating from superspeedyplugins.com when the source URL is available
Frequently asked questions
Is Scalability Pro GPL licensed?
Can I use Scalability Pro on multiple websites?
How much does Scalability Pro cost on GPLCoffee?
Are updates included with Scalability Pro?
Is Scalability Pro safe to download?
Auto-updates included
Install it once, update automatically.
The GPLC Connector installs this plugin from your wp-admin and rolls out new versions to your connected sites - up to 25. Included with 12-month and Geek Lifetime plans (plus legacy 6-month).