Tools

Free security tools

All tests are free and need no sign-up. Most run only in your browser – what you enter does not leave your device.

IP check

Which IP address, provider and location do websites see – and does WebRTC reveal your real IP?

Browser check

What your browser reveals and how websites recognise you without cookies.

Leak check

Does your e-mail address appear in known data leaks?

Password generator

Create secure passwords and check your own password – only in your browser.

Link check

Spot suspicious links and phishing tricks before you click.

Speed test

Measure ping, download and upload – compare with and without VPN.

Cyber radar

Current security incidents explained simply – with tips on what you can do.

Your 10-minute security check

Tick off what you have done. Progress is only saved in this browser.

0 of 7 done
  1. 1. Check whether your real IP is visibleOpen
  2. 2. Look at your browser fingerprintOpen
  3. 3. Check your e-mail address for data leaksOpen
  4. 4. Replace weak passwordsOpen
  5. 5. Check the next suspicious linkOpen
  6. 6. Measure your speedOpen
  7. 7. Read the latest warningsOpen
Protect your connection
Encrypted, no logs, servers in Germany – pay once, no subscription.
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