DayZ Server Status Checker

The Port Trap: Game Port Plus One

This is the detail that makes most DayZ checks fail. The port in the server browser and in your launch parameters - usually 2302 - carries gameplay traffic and does not answer status queries. The query lives on the next port up, normally 2303.

So a perfectly healthy server checked on 2302 looks dead. If you paste an address whose port stays silent, this tool automatically retries on port + 1 before giving up, which covers the common case of pasting the address straight from the server list.

Community servers on custom ports follow the same rule: a server on 2402 answers on 2403. If you are unsure, enter the game port and let the retry find the right one.

Why Check DayZ Server Status?

DayZ punishes wasted time more than most games. Queues on popular servers run long, loading takes a while, and a character carrying an hour of looting is lost the moment something goes wrong. Knowing whether the server is up before you queue is worth the five seconds it takes.

For admins, an external check is the quickest way to separate "the server is down" from "one player cannot connect" - two problems with completely different fixes.

Common Reasons a DayZ Server Goes Offline

• Scheduled restart: most DayZ servers restart every few hours by design. A check during that window shows offline for a completely healthy server.
• Mod update: a Workshop mod updates and the server refuses connections until its copy is updated to match.
• Game update: a new DayZ version makes the server incompatible with clients until the host updates it.
• BattlEye issues: anti-cheat problems can block connections while the server process itself is still running.
• Crash under load: heavily modded servers with many players and vehicles can crash at peak population.
• Firewall rules: on a self-hosted machine both the game port and the query port must be open, and it is the query port that people forget.

Continuous Monitoring for Server Owners

With UptyBots you can set up a port monitor on your DayZ query port that:

• Checks the server from several countries every 1 to 5 minutes.
• Alerts you by email, Telegram or webhook when it stops answering.
• Distinguishes a scheduled restart from a real outage by showing exactly how long the gap lasted.
• Keeps uptime history you can show the community instead of arguing about it.

Point the monitor at the query port (2303 for a default server), not the game port - the game port will look down even when everything is fine.

Frequently Asked Questions

What port should I use to check a DayZ server?

The query port, which is the game port plus one: 2303 for a standard 2302 server. Enter the game port and the tool will retry on the next one automatically.

My server is up but the check says offline. What now?

First confirm you used the query port. If that is right, check whether the server is inside its restart window, and make sure the query port is open in the firewall - it is a separate rule from the game port.

Does this work for Livonia, Chernarus and community maps?

Yes. The map name comes back in the response, so you also see which world the server is running.

Is this checker free?

Yes, free and without signup. For continuous checks with alerts and uptime history, create a free UptyBots account.