Troubleshooting an "offline" result
- Port not forwarded — if you're hosting from a home connection, your router needs a port-forward rule pointing 25565 (or your custom port) at the machine running the server.
- Firewall — Windows Firewall, ufw, or a cloud provider's security group can all silently block the port even when the server itself is running fine.
- enable-status=false — if this is set in server.properties, the server won't answer status pings at all, even though players can still join directly.
- Wrong port in server.properties — make sure
server-portmatches the port you're checking here. Build one with the properties generator if you're not sure it's set correctly.
What "latency" means here
The number shown is round-trip time for this check itself — the time between our request and the server's status response — not in-game ping, which depends on the connecting player's own network path. A high number here usually means the server (or the network between it and this checker) is under load, not that your own connection will necessarily be slow.