Easy Critical CSS
Easy Critical CSS is a lightweight WordPress plugin that lets you add Critical CSS to any page on your site to improve loading speed and performance. Features: – Easily add Critical CSS and Secondary CSS to any page – Secondary CSS removes unused CSS rules and stylesheets, ensuring only a single opt
Easy Critical CSS is a lightweight WordPress plugin that lets you add Critical CSS to any page on your site to improve loading speed and performance.
Features: – Easily add Critical CSS and Secondary CSS to any page – Secondary CSS removes unused CSS rules and stylesheets, ensuring only a single optimized CSS file loads – Supports posts, pages, archives, and taxonomy pages – Fully compatible with caching plugins (WP Rocket, W3 Total Cache, WP Super Cache, etc.) – Customizable settings for individual pages – Stores Critical CSS in your choice of the database or as static files – Optional API service ( API key required ) for automated Critical and Secondary CSS generation via CriticalCSS.net – Background processing to generate CSS without blocking page loads or admin actions
Why Use Critical CSS?
Critical CSS ensures above-the-fold content loads first by reducing render-blocking CSS. This helps you boost Core Web Vitals, improve page speed scores , and deliver a better experience to your visitors.
Want to try it out first? You can generate free one-off Critical CSS at CriticalCSS.net and manually apply it to your site using the plugin settings.
External services
This plugin interacts with external third-party services in order to provide its functionality. Below is a detailed breakdown of these interactions:
- 01Critical CSS API (api.criticalcss.net) This service generates critical and secondary CSS used to optimize your site’s CSS delivery and improve page load times. Data Sent : The URL, CSS generation preferences, generation status, and HTML content of pages from your website.
- 02When : Data is transmitted only if you have explicitly enabled the Auto generation mode, and occurs whenever Critical CSS or Secondary CSS needs to be generated or regenerated.
- 03Links : Terms of Service , Privacy Policy .
- 04Cloudflare API (api.cloudflare.com) This service is used to automatically clear your Cloudflare cache after new critical CSS is generated, ensuring your visitors see updated styles immediately. Data Sent : Authentication credentials (Cloudflare email, API key, and zone ID) and instructions for purging the cache.
- 05When : Data is sent only if CLOUDFLARE_EMAIL , CLOUDFLARE_API_KEY , and CLOUDFLARE_ZONE_ID are defined in your site’s configuration.
