Get a quick read on a page’s performance red flags — no lighthouse install, no CLI, no account, just paste a URL and go.
Scan a live webpage
If the site blocks browser access, paste its HTML instead.
Paste page HTML
One-off scan. Nothing is saved.
0
Not scanned
Front-end performance health
Automated checks are indicators, not a legal certification. Manual testing may still be required.
Ready to scan
Enter a URL or paste HTML.