Is my server online?
Check any Minecraft or FiveM server in real time. Enter the server address and port — results come back within a few seconds.
How it works
Minecraft — the checker opens a TCP connection to your server and sends the Minecraft Server List Ping (SLP) protocol handshake, the same packet a real Minecraft client sends. The server replies with its JSON status payload: MOTD, player count, and version. No players are connected and nothing is written to the server log.
FiveM — FXServer exposes an HTTP API on the same port as the game. The checker fetches /info.json for server details and /players.json for the live player list. The default FiveM port is 30120.
Why does my server show offline?
- 1
The server process isn't running
Check your panel's server status or SSH in and run systemctl status minecraft (or fivem). The most common cause is a crash — check the latest log for stack traces.
- 2
Wrong port
Minecraft default is 25565. If server.properties sets server-port to something else, use that port here. FiveM default is 30120 unless sv_endpoint_add_tcp or sv_endpoint_add_udp overrides it.
- 3
Firewall blocking the probe
Some hosts close ports by default until you whitelist them. Check your firewall rules: port 25565/TCP for Minecraft, port 30120/TCP+UDP for FiveM. Cloud VMs (Hetzner, AWS) also have security-group rules that sit outside the OS firewall.
- 4
Server is still starting
Heavily modded Minecraft servers can take 2–5 minutes to boot and won't respond to SLP until the world finishes loading. FiveM is usually up within 30 seconds.
- 5
DDoS protection eating the SLP packet
Some DDoS mitigation layers (Cloudflare Spectrum, TCPShield) don't proxy raw TCP unless specifically configured. If your server is behind such a layer, the checker probes the mitigation edge, not the backend.
Server keeps going offline?
CoalHosting auto-detects crash loops and restarts your server within minutes — with AI diagnosis to explain what caused the crash.
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