Stop Account Takeovers
before they hit your bottom line.
Protect your e-commerce store or SaaS platform from credential stuffing and fraud. Our API checks logins silently at the edge – with zero code changes and fully GDPR compliant. Currently in free Open Beta.
Maximum Compliance
Data processing in German data centers. Zero Cloud Act, fully GDPR compliant, and ready for your next security audit.
Privacy by Design
Full security using k-Anonymity. You only send hash prefixes to our API – we never see the actual passwords.
Fail-Open Architecture
We only add milliseconds to your login. And in case of network issues, our fail-open design guarantees your login flow is never blocked.
The Hard ROI of Leak Checks
Why modern engineering teams block credential stuffing at the edge instead of escalating to the support desk.
Save 2 Weeks of Dev Time
Saved in development costs. No need to build custom rate limits, circuit breakers, or HIBP clients. Live in 15 minutes via plugin.
Support Ticket Reduction
Saved per Level-1 ticket. Eliminate manual password resets and identity verification for panicking users after a hack.
Minimize Chargebacks
Added MFA friction in checkout. We silently block fraudsters using leaked passwords before they can order goods at your expense.
Ready to secure your login?
Try the leak check interactively in your browser or integrate the Caddy plugin into your infrastructure in 15 minutes. No risk, no credit card required.