Free, no sign-up

Tools for servers, networks and domains

The small checks we need all the time ourselves: is the game server up? Is the port open? Are DNS and mail records right? No ads, no tracking, no account.

  • 10 tools, all free
  • No tracking, no ads
  • German and English
Game server statusIs your Minecraft, CS2, Rust or Valheim server online? Players, version and map at a glance.Check now Website checkIs the site down: just for you or for everyone? Checks from all monitoring locations at once.Check now Port checkIs a port reachable from outside? Checks your own IP, for port forwarding, game servers and homelabs.Check now My IPWhat is your IP address right now? IPv4 or IPv6, with reverse DNS.Check now DNS & mail checkCheck a domain's DNS records, DNSSEC, SPF, DKIM, DMARC and MTA-STS, with a comparison of three resolvers.Check now IP infoWhere is an IP from? Country, network, operator (AS) and abuse contact of an address.Check now Domain checkIs the domain still available? Registrar, expiry date, name servers and DNSSEC of a domain.Check now SSL checkCheck a website's certificate: valid, issuer, expiry date, chain and host name.Check now Blacklist checkIs your mail server on a blocklist? Checks an IP against 11 public blacklists.Check now Subnet calculatorCalculate IPv4 and IPv6 networks: network address, broadcast, first and last address, count.Check now

Checked from outside

Game server status and port check do not run in your browser but from a monitoring location of our Statusbot, the way a player or visitor sees your service from the internet.

No probing of others

The port check only tests the address your request comes from. All tools are limited per visitor and per target so that nobody can turn them against others.