Most certificate monitoring checks whether a renewal job ran. CertPost checks what your server actually serves to a real visitor: the certificate on the wire, the full chain, the hostname, the fingerprint. That is the difference between “the log says success” and “your visitors see a valid certificate” — and it is the gap where most certificate outages live.
The product philosophy is one job done well: a smoke detector, not a cockpit. No uptime probes, no dashboards you have to babysit. One alert you can act on, at 30, 14, 7 and 1 days, delivered to a human who can fix it.
CertPost is built and operated by Kryptoplus Labs Ltd, a software company registered in London (EC2A), United Kingdom.
Questions, feedback, or a certificate story we should hear? Email support@certpost.ai — we reply within one business day.
We store the endpoints you ask us to monitor and the certificate metadata we observe on them — nothing else. We never see your traffic, your keys, or your content, and we never sell or share monitoring data. Checks connect from the outside, exactly like a browser would.