Know when a server stops answering, before your users do.
Ping, TCP ports, mail and cache services, checked from several European regions — and from inside your network with a private agent.
The services your servers run.
Each check speaks the service's own protocol, not just an open socket.
Internal servers too.
Each option tells you which plan unlocks it.
One lost packet is not an outage.
A server is declared down only when the regions agree.
Questions about server monitoring.
All questions → Ping monitor docs →TCP monitor docs →Mail & cache docs →No. OKStatus checks your servers from outside, the way your users reach them: is the host up, is the port open, does the service answer. Keep your exporter for system metrics; from Pro, the Prometheus export puts OKStatus uptime next to them in Grafana.
The ping monitor falls back to a TCP connection on port 443, then 80: if one opens, the host counts as up. To watch a specific port, use a TCP monitor.
Yes, with a private agent installed in your network, on Max and Enterprise. It runs the same checks against private addresses and reports the results to OKStatus.
Every 5 minutes on Free, every 60 seconds on Pro and every 30 seconds on Max and Enterprise, from up to 2, 3 or 5 regions per monitor.
Your first monitor in under a minute.
Free plan, no card. Hosted and operated in Europe.