CSS Optimization
Enable CSS Optimization
Enable this to start CSS optimiation. All css optimization like minification, critical css generation, custom css etc will show only when this option is turned on.
Combine Google fonts
The W3Speedster Plugin loads and combines all Google Fonts used on your site and loads it together preventing multiple requests. If critical css is generated, all required google fonts are loaded instantly and rest are lazyloaded ie. loads on user interaction. If you still want to load any font upfront and then you can write its css in custom css code section provided by the plugin.
Load Critical CSS
The W3Speedster Plugin generates Critical CSS which loads upfront and let all css files to load to user interaction enabling faster loading of the page.
Cache
Delete JS/CSS Cache
The plugin lets you delete the combined and minified cache for JavaScript and CSS. This ensures that any changes made to your theme or plugin files are updated and reflected on your site.