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TCP port monitoring

TCP port monitoring

Not everything speaks HTTP. A TCP monitor opens a connection to host:port every minute from every location, and is up as long as the connection is accepted.

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Live check of uptime.rs

uptime.rs:443 answers in 0.8 ms

Address
185.119.88.128:443
Connects
4 of 4 succeeded
Min / avg / max
0.6 / 0.8 / 1.4 ms
Checked
0 seconds ago

Live right now

27,979sites monitored
1,706,481checks in the last 24 hours
6check locations
60days of history

TCP port monitoring

Any port

db.example.com:5432, mail.example.com:25, ssh on 22, or your game server. Add many at once, one per line.

Connect time per location

See how long the handshake takes from each location, and where it fails first.

Same alerts and status pages

TCP monitors alert on every channel and appear on status pages like website monitors.

How it works

  1. Create an accountPick a username; it becomes your status page address.
  2. Add your sitesPaste a list or import from your panel or DNS provider.
  3. RelaxWe check every minute and tell you the moment something is really down.

Questions

How do I add a port monitor?

Choose "TCP port" as the check type and enter host:port, for example mail.example.com:25.

Is ICMP ping supported?

Checks use TCP, which works through firewalls that drop ICMP and also proves the service itself answers.

Read the docs →

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