haveibeenpwned is great! but it doesn't have anything to do with password strength. it just tells you if your password hash has been leaked/stolen. edit: see

haveibeenpwned is great! but it doesn't have anything to do with password strength. it just tells you if your password hash has been leaked/stolen. edit: seems I'm wrong and they do actually have a passwords section: https://haveibeenpwned.com/Passwords https://haveibeenpwned.com/Passwords