Servebolt Optimizer for WordPress

The Servebolt Optimizer plugin for WordPress adds functionality to implement Servebolt’s best practices for WordPress. This includes database optimizations, log review, automatic cache purge and more.


  • Database optimization – Convert tables to InnoDB
  • Database optimization – Add performance improving indexes
  • HTML Page Caching
  • Automatic Cloudflare cache purge
  • Cloudflare Image Resize-support (beta feature)
  • Recommendations on additional performance improvements
  • Rewrite headers to allow downstream full page caching (Servebolt clients only)
  • View Apache/PHP error log (Servebolt clients only)
  • Automatic version parameter for asset URLs
  • Native JS fallback
  • Multisite support
  • WP-CLI support
  • Accelerated Domains support (Servebolt clients only)
  • Accelerated Domains – Prefetching support
  • Servebolt CDN support (Servebolt clients only)

Automatic Purge of Cloudflare Cache

When caching your site using Cloudflare then this plugin can help you to invalidate cache whenever content is updated. Cache purge can also be done manually, but the automatic invalidation should have you covered whenever you update your content. The only thing you need is adding your API Key/Token in the settings.

Full Page Caching

This plugin rewrites HTTP headers of HTML to allow for HTML Page Caching, and for the browser to cache HTML. Full Page Caching may introduce all sorts of problems for end users, so installation and testing should be performed by a professional.

Automatic Images Resizing with Cloudflare

This plugin can also facilitate for automatic image resizing using Cloudflare. This can help you free up space and keep the cost down. Note that this feature is only available for customers with Cloudflare Business and upwards.

Filters and Constants

The plugins behaviour can be tweaked using filters and PHP constants. More information about this in the article about Filters and PHP constants in Servebolt Optimizer for WordPress.

View Apache/PHP error log

The plugin has a build-in feature which lists out all potential error messages for you site. A much easier way than to check it manually on the server. Should you need to check them on the server you can read more about that here.

Automatic version parameter for asset URLs

Used for automatic cache busting to the URLs of JS and CSS files. This is useful when dealing with issues related to cache.

Native JS fallback

This feature reverts to native JS for alerts, prompts and confirmations which would otherwise use third party library SweetAlert. Note that this is prone to cause conflicts if SweetAlert is already used in the theme or in other plugins.

Accelerated Domains support

You need to enable Accelerated Domains from this plugin should you use this service. Some new features will then be added like automatic purging of updated content in addition to manual purging of the whole site or single URLs. Check out our article on how to order Accelerated Domains here.

Accelerated Domains – Prefetching support

An addition to Accelerated Domains is a prefetching support, directly in the plugin. The idea behind the prefetching feature is that Accelerated Domains Prefetching pre-populates the cache with content a site visitor is likely to request next. This guarantees a higher cache hit rate and thus a faster experience for the user. 

Download Servebolt Optimizer

You can download our Servebolt Optimizer plugin from the WordPress plugin repository or install it directly by searching for it in the plugin menu inside your WordPress installation.