Test Your Website Speed
Get your Core Web Vitals, performance score, and optimization insights. Free, no signup.
What Is a Website Speed Test?
A website speed test measures how quickly a web page loads and renders in a browser. It evaluates Core Web Vitals — the metrics Google uses as ranking signals — including Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), First Contentful Paint (FCP), and Time to First Byte (TTFB). Slow-loading pages increase bounce rates, reduce conversions, and hurt search engine rankings. A speed test identifies specific bottlenecks like unoptimized images, render-blocking resources, or slow server response times. Visual Sentinel's free speed test runs a Lighthouse audit and returns performance scores with pass/fail indicators based on Google's thresholds, giving you actionable data to improve load times and maintain strong Core Web Vitals scores.
Core Web Vitals
Get LCP, FCP, CLS, and TTFB scores with pass/fail indicators based on Google's thresholds.
Performance Score
See your overall Lighthouse performance score on a 0-100 scale with mobile testing.
No Signup Required
Test any website's speed for free. No account or credit card needed.
Need Continuous Performance Monitoring?
One-time speed tests miss regressions. Monitor performance continuously and get alerted when things slow down.
Learn about performance monitoring