Oh Dear

Official

Oh Dear publishes a fixed set of EU-based monitoring probe IPs as JSON, plain text, CSV, and a Cloudflare list format. Fetch on a schedule rather than hard-coding — the list updates when probes are added or retired.

Checkly Checkly static monitoring IPv4/IPv6 JSON. updown.io updown.io monitoring node IP JSON. UptimeRobot UptimeRobot probe IP text lists. HetrixTools HetrixTools uptime monitor IP list.