A CSS file on your page is very large, which can delay when your page becomes visually complete. Large stylesheets take longer to download and process, directly impacting your Core Web Vitals scores.
A CSS file that is several hundred kilobytes in size.
Remove unused CSS, split stylesheets by page or component, and minify your CSS files.
Smaller stylesheets download and process faster, improving First Contentful Paint (FCP) and Largest Contentful Paint (LCP).
This issue can affect your site's search engine rankings and user experience. Addressing it promptly helps ensure optimal performance and visibility in search results.
Black SEO Analyzer automatically checks for this warning during site analysis, along with hundreds of other technical SEO issues.
Choose the license that fits your needs and start getting the deep, actionable insights you deserve.