What it checks
- Console errors captured in a real browser
- Desktop and mobile browser diagnostics
- Failed network requests
- Browser health score
- Screenshot evidence
- Expected text or button checks
- Incident reports for developer handoff
JavaScript Error Monitoring for Websites
Catch browser JavaScript errors before users report them. Run real-browser diagnostics alongside uptime, failed-request and screenshot evidence.
Check a website free →No signup for a quick check
JavaScript failures are invisible to a simple uptime ping
Your server can respond normally while the frontend throws an exception after load. Browser diagnostics help separate 'the server is up' from 'the website actually works'.