This server hosts the databases of breached passwords used by the Passwords app for Nextcloud.
The data is taken from the haveibeenpwned.com Pwned Passwords list and contains the most common breached passwords.
You can create the database yourself:
./occ passwords:pwned-list:process <file> --size 25 --import
This website is operated by the author of Passwords for Nextcloud. It is not related to and not hosted by the operator of your Nextcloud or the Nextcloud GmbH. This website does not store any requests or other user data.
If you need help or have questions, visit the documentation, our forum or our Telegram group.