Message Rules Notify users one by one with retries
Send to one user at a time, then retry 5 times at 5 minute intervals before escalating to the next user. You can change the intervals and timings.
PagerDuty is a well-known incident management system. It provides alerting, on-call scheduling, escalation policies and incident tracking. If you use or plan on using PagerDuty, you can can integrate it with your healthchecks.io account in few simple steps!