Loading speed is a Google ranking factor. Discover how to optimize Core Web Vitals and improve user experience.
Since 2021, Google uses Core Web Vitals as an official ranking factor. A slow site loses not only positions in search results, but also visitors: 53% of users leave a mobile site that takes more than 3 seconds to load.
Performance also impacts conversion rate, bounce rate, and user engagement. Investing in your site's speed is one of the best ROI SEO optimizations.
LCP measures the time needed to display the largest visible element on the page (image, video, or text block). It's an indicator of perceived loading speed.
INP (which replaced FID since March 2024) measures your site's responsiveness to user interactions (clicks, taps, input). It's the interaction latency.
CLS measures the visual stability of your page. It quantifies unexpected layout shifts during loading (when a button moves just as you were about to click it).
Compression reduces HTML, CSS and JS file sizes by 60-80%, significantly speeding up transfer.
Configure Cache-Control headers so static resources are stored locally.
Serve your content from servers close to your users to reduce latency.
Optimize your server response time. Target: less than 200ms.
Our tool automatically measures performance metrics via the Google PageSpeed Insights API and gives you separate scores for mobile and desktop.