Uptime Checks
Reminder alerts
OnlineOrNot sends alerts for two reasons:
- One of your checks has started failing
- One of your checks is passing again
By default, new OnlineOrNot checks will also send reminders that a check is failing, once every 24 hours.
Configuring reminder alerts
You can configure this in Alert Settings when creating or editing a check:

The following options are available:
- Never
- Every 15 minutes (paid plan)
- Every hour (paid plan)
- Every 6 hours (paid plan)
- Every 12 hours (paid plan)
- Every 24 hours