Free, with every feature.
Analyze as many sites as you need to explain a performance problem. When you want an expert to look at it, the paid services below are there.
Without an account
- 3 analyses per day
- The full report with prioritized findings
- A prompt for your AI coding agent on every check
- Email the report to yourself and share its link
With a free account
- 20 analyses per day, re-run any URL right away
- Saved history of your analyses
- Device selection (mobile, tablet, desktop)
- Custom headers and cookies for pages behind a login
- Advanced mode and advanced workflows
When you need an expert
Joan León, web performance consultant, reviews your site himself.
Expert review
Performance audit
Common questions
Why is it free?
The tool is how people get to know PerfReviews. Some of them later ask for an expert review or an audit, and that pays for it.
Why are there daily limits?
Every analysis opens a real browser and the summaries use AI, so the limits only protect the cost. They are not a paywall.
Can I analyse any public website?
Yes. The tool runs a real browser against any public URL. Pages behind a login need a free account and custom headers or cookies.
Built by Joan León
Web performance consultant at PerfReviews and author of WebPerf Snippets, the open source collection of performance scripts that powers every check in this tool. The findings and recommendations follow the same criteria used in real client audits.