Articles in this section

  • Critical CSS

    Render-blocking CSS is one of the biggest contributors to slow pageload times and poor user experience. By prioritizing the CSS that’s required to render the first visible port...

  • Rule-Based Injection

    What is Rule-Based Injection? By default, RapidLoad queues and optimizes each URL separately. While this is perfectly fine for smaller websites and necessary on custom pages, i...

  • Sitewide Safelists & Blocklists

    What is a Safelist? A safelist is a list of CSS selectors (classes, IDs, or both) that RapidLoad will ignore when optimizing your site’s CSS. Selectors on the safelist will not...

  • Excluding Files & URLs

    Sometimes you may need to exclude entire CSS files or pages from RapidLoad optimization. RapidLoad makes this easy through the use of file and URL exclusions. Exclusions can be...

  • Additional Options

    Load original CSS files Some JavaScript creates or updates CSS selectors on interaction. Enabling this option will inject a page’s original CSS files upon user interaction. Thi...