Checks performed
- Server response time
- Total page weight
- Image weight
- Text compression
- Render-blocking scripts
- Number of resources
- Browser caching
- HTML size
- Core Web Vitals
What slows most websites down
In order of frequency: oversized images, slow hosting without page cache, too many third-party scripts (chat widgets, trackers), and missing compression.
Lab data vs real users
A single test is a snapshot from one location. Core Web Vitals field data (from real Chrome users) is the reference Google uses for ranking.
FAQ
What is a good server response time?
Under 800 ms for the first byte is the commonly used threshold; under 200 ms is excellent.
Check everything at once
The full audit crawls up to 10 pages and runs 63 checks across SEO, performance, accessibility and technical health.
Run a free full auditOther tools: Meta Tag Checker · Robots.txt Checker · Sitemap Checker · Heading Checker · Open Graph Checker · Image Alt Text Checker · Broken Link Checker