Welcome to the Auth0 Community!
Although this is not directly mentioned within the Dashboard, Auth0 uses bcrypt password hashing algorithm with a 128-bit salt and 10 rounds as standard, as outlined in our following documentation : Security Questions on Keys used for Secret Encryption
I can recommend looking through our other docs and blog posts for more related information :
In case you would find it useful to have this mentioned within the Auth0 Dashboard, you can leave a Feedback on which other users can vote. As this page is monitored by our Product team, if a feature requests presents interest, it can accelerate it’s development into a potential release down the line.
Hope that helped!
Gerald