PageSpeed

What Is PageSpeed?

Google has officially confirmed since 2018 that PageSpeed is a ranking factor — especially in mobile search. Slow pages don’t just lose rankings; they also lose visitors: 53 percent of users abandon a page that takes longer than three seconds to load. PageSpeed optimization is therefore one of the few measures that simultaneously improves rankings and conversions.

PageSpeed refers to the load speed of a web page — how quickly all visible content and functionality become available to the user. Google officially declared page speed a ranking factor in 2010 and further underscored its importance in 2018 with the Core Web Vitals. Fast pages have always ranked better, but today load time is not just a ranking signal — it’s also a central component of user experience; slow pages lose visitors.

Technically, PageSpeed is measured by several metrics: First Contentful Paint (FCP) measures when the first content becomes visible, Largest Contentful Paint (LCP) shows when the largest element is loaded, and Time to First Byte (TTFB) measures the delay until the first server response. These values depend on server performance, image optimization, JavaScript complexity, and hosting. A fast server, compressed images, and minified CSS and JavaScript are the basics.

In practice, PageSpeed problems can be quickly identified with free tools like Google PageSpeed Insights or Lighthouse. Simple measures include: reducing image file sizes and saving them in modern formats like WebP, minifying JavaScript and CSS, using a CDN, and implementing lazy loading for images. For e-commerce, it has been shown that every second of load time costs about 7% of conversions — PageSpeed optimization is therefore relevant not only for SEO but also for revenue.