Uplance · Free tools

Free tools

One answer per question, no account, nothing kept. Each runs the same code the matching monitor runs inside the product.

• Minecraft server status checker

  Paste a server address and see what a player's client sees: online or not, who's on, the version and the MOTD. No account, nothing stored.

• SSL certificate checker

  Uplance opens a real TLS connection and reads the certificate the server actually sends — chain included.

• DNS lookup

  Seven record types in one answer, resolved when you ask rather than read out of a cache of ours.

• Is your mail server on a blocklist?

  A live query to each of the five blocklists that large mail providers actually consult.

• HTTP header check

  Every response header the URL returns, the redirects it went through, and which security headers are missing.

• Uptime calculator

  What a number in a service level agreement actually permits, per day, week, month and year.