Free performance tool
Website Speed Test
Analyze how a webpage loads, identify slow resources, inspect response timing, and find practical performance improvements.
Low-cost HTTP-lite mode. Browser-only metrics are shown as unavailable instead of guessed.
Limitations
Use the result as planning guidance
- Low-cost HTTP-lite test, not a full browser run.
- Does not fabricate FCP, LCP, CLS, Speed Index, or Total Blocking Time.
- Resource discovery is bounded and based on public HTML references.
- Field Core Web Vitals still require real-user or Google tooling.