Free tool
Page Speed Checklist
A practical LCP/CLS/INP checklist for faster pages.
- 100% Free to use
- No credit card required
- Works offline in your browser
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Why it helps
Actionable steps
Check the most common performance bottlenecks.
Fast reviews
Use as a pre-launch QA checklist.
Performance
Page speed checklist
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FAQ
Quick answers about this tool.
Is this private?
Yes. All processing happens in your browser.
Do I need an account?
No. These tools are free and work without signup.
Can I use multiple files?
Yes. Most tools support batch processing.
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