SiteCanary monitoring
See what a browser experiences
Run real page loads in headless Chrome and keep bounded performance history alongside the rest of your monitoring.
What it checks
- Time to First Byte and DOMContentLoaded
- Largest Contentful Paint and Cumulative Layout Shift
- Configured page selectors and post-load wait behavior
- Screenshots from recent browser runs
- JavaScript console errors and log volume
When it alerts
- A configured browser timing threshold is exceeded
- The page cannot load or a required selector does not appear
- JavaScript errors or log volume exceed configured limits
What you can investigate
- Timing trends and per-run browser measurements
- Recent screenshots and console observations