Autoptimize Pro

Autoptimize Pro is a premium Power-Up subscription for WordPress performance settings. It brings page caching, image optimization, CDN support, automatic critical CSS rules and extra booster settings together with Autoptimize’s asset optimization.

CSS and JavaScript delivery

Autoptimize can aggregate and minify CSS and JavaScript, minify HTML, optimize Google Fonts, configure asynchronous non-aggregated JavaScript and remove WordPress core emoji code. CSS goes in the page head by default. Critical CSS can be inlined while aggregated full CSS is deferred. When aggregation is enabled, styles move to the head and scripts to the footer. You can also turn aggregation off while keeping minification enabled.

HTTP/2 reduces the impact of multiple requests, though aggregation or minification may still fit a particular website. Configure the options, test the pages, then adjust and test again.

Pro functions and image access

• Page caching: Add page caching to the optimization setup. Autoptimize Pro can also complement a separate page caching plugin.
• Image optimization: Optimize and lazy-load pictures, with support for WebP and AVIF. Image processing requires the optimization service to fetch the original documents publicly; firewalls, password protection or hotlink restrictions can prevent access.
• CDN support: Serve Autoptimize-generated CSS and JavaScript through a configured CDN. Uploaded images use a separate WordPress upload URL setting, and changes apply to images uploaded afterward.
• Automatic critical CSS: Use automatic critical CSS rules to support non-render-blocking CSS delivery.
• Booster options: Apply additional performance settings beyond the core asset controls.

Cache handling and support

When Autoptimize’s asset cache is cleared, cached page HTML may still refer to removed CSS or JavaScript files. Clear any page cache holding that HTML as well; integrations do not cover every setup.

An extensive API allows further customization. The WordPress support forum can help with configuration, confirmed code bugs can be reported on GitHub, and premium support and web performance optimization services are available.

Removing the plugin

Disable Autoptimize first, then remove it. Clear any remaining page cache that contains references to optimized CSS or JavaScript.