mcscanner

A research census of public Minecraft servers. If this address showed up in your logs, this page explains why.

What we do

• We send TCP connection attempts to port 25565 (Java Edition) and 19132 (Bedrock Edition) across the public IPv4 space, about once a week.
• If a Minecraft server answers, we ask for its public status: the same server-list ping a game client sends to show the MOTD, version and player count.
• For Bedrock we request the public /v1/join status endpoint and send one RakNet ping.
• About once a week we also join each Java server as the player Sweep to read the server software and the area around spawn. This is a real login: your server will log the join, may broadcast a join message, and will write player data for Sweep. We do not chat, move beyond spawn, or interact with anything, and we disconnect after a few seconds.
• We never attempt to bypass authentication or whitelists, never try RCON passwords, and stop joining a server after it refuses us twice.

Our scanning addresses

• 176.65.149.232

Opt out

Add your address or range below and it will be excluded from the next sweep onward, including the weekly join. Ranges up to /16 are applied immediately; for larger ones, or anything else, email abuse@mart.fyi.

You are visiting from 216.73.216.66.

Contact

Abuse reports and questions: abuse@mart.fyi. We answer the same day.