CSS Minifier reduces the size of cascading style sheets by removing whitespace, comments, and extra characters without altering functionality. The smaller file loads faster, improving page speed and user experience—two crucial SEO factors. By compressing the styling code, you decrease bandwidth usage and reduce a site’s time-to-first-render. For large style sheets with repeated rules, minification can save significant kilobytes. Combine it with best practices like caching or content delivery networks (CDNs) for optimal performance. Ultimately, minified CSS ensures your styles remain intact while improving overall efficiency for both visitors and search engines.