Check whether an email address or domain has appeared in a known breach.
Email and domain breach lookups require a paid Have I Been Pwned API subscription CoreRipper doesn't have one connected yet, and this page doesn't fake a result while that's the case.
In the meantime, the Password Breach Checker is fully live today it checks a specific password against known breaches entirely in your browser, for free, with no API key required.
Try the Password Breach Checker