Website Performance Investigator
Repeat a browser measurement and inspect timing, requests and rendering evidence.
Verify a domain for origin checks, browser actions or webhook delivery
Publish the unique value in a DNS TXT record or a small file on your HTTPS website. Verification lasts 24 hours in this browser session.
Results
Submit a job to collect evidence. Its actual queue state will appear here.
Your recent jobs
No history loaded. Refresh to view jobs from this browser session.
What you can investigate
Repeat a browser measurement and inspect timing, requests and rendering evidence. Review the affected endpoint or page, the measurement time and the suggested next action before changing your site.
Scope and privacy
Inputs and results are encrypted in our database and tied to this browser’s private ownership cookie. Only public destinations are allowed. Reports last up to 24 hours within the shared 500-report history; private recovery backups have a separate lifetime.
Browser experiments use Chromium from our server. They may observe a different response from another device, location or authenticated user. Automated accessibility findings need manual follow-up, consent observations are not legal certification, and rendered content does not prove search indexing.