How often are webhooks sent?
Webhooks follow the same schedule as every other notification channel: they fire when the underlying check decides there's something worth reporting.
Some examples:
- Site down / site recovered: fires as soon as we detect the state change (typically within a minute or two, after secondary-location verification)
- Site still down: reminders fire every hour while the outage continues
- Certificate expires soon: once per day until the certificate is renewed
- DNS records changed: once per detected change
- Broken links found / fixed: once per crawl
The full list of events, with example payloads, is documented here: webhook events.