Speed and errors, measured on real visitors
LCP, INP and CLS from real visitors, the slowest pages, and JavaScript, resource and API errors grouped by message. Uptime checks tell you when the site is down.
- Real-user Web Vitals
- Errors grouped by message
- Uptime checks from Pro
Performance next to conversion
A slow page is a conversion problem. See both in one place.
Core Web Vitals
LCP, INP and CLS from real visitors, per page and device.
Slowest pages
Which pages are worst, so you fix the ones with traffic.
Errors
JavaScript, resource and API errors grouped by message, with the pages and browsers affected.
Uptime and alerts
Uptime checks (1 on Pro, 10 on VIP 2) and alerts by email, IM or webhook.
Nothing extra to install
- 1
Add the snippet
Web Vitals and errors are collected with your analytics.
- 2
Open Performance
See vitals per page and the most common errors.
- 3
Set alerts
Get told about error spikes and downtime (from Pro).
What performance data answers
Which pages are slow for real users?
Real-user LCP per page, not a lab test.
Did the release break something?
New errors show up grouped by message.
Is the site down?
Uptime checks alert you when it stops responding.
Web Vitals & error monitoring questions
Anything else — open the chat in the corner and ask.