Signing up to this website is free of charge and not mandatory. This website has no ads and doesn't use any tracking.
If you sign up the data provided by you will be stored on the server (located in Germany). As this is the only personalized data being collected you may change and view those in your accounts page at any given time. To delete your personalized information simply delete your account in the accounts page.
To check on the systems status, prevent attacks and maintain this service logs of the server activity are collected. These logs contain the username and email-address and are deleted every week. Passwords aren't subject of the logs and are stored encrypted.
By confirming you agree to the storage of the before mentioned data (for as long as you don't delete your account that is)