What are some alternatives?
When comparing DeHashed and Password Checkup, you can also consider the following products
Snusbase - The industry leading database lookup.
LeakBase - Check if your account credentials have been leaked.
Databases.today - The largest collection of publicly available databases for security researchers and journalists.
GhostProject.fr - GhostProject.fr is a Fatest Free Database Lookup of Recent 1.4 billion password breach compilation
LeakCheck - Data breach search engine, low price starting from $10/mo, one email address for free, unlimited API, 7B+ entries
NuclearLeaks - The biggest free-to-download collection of publicly available website databases for security researchers and journalists.