A lapsed certificate shouldn't be how you find out.
Certificates expire quietly, usually on a weekend, usually right before someone important tries to load your site and gets a browser warning instead. Add the host once, set how many days of warning you want, and HeimPulse flags it before it lapses.
One host, one line
Add a hostname — not tied to any particular service, since the same certificate can back several of them, or none.
A threshold you control
14 days of warning by default, adjustable from 1 to 365 — set your own lead time instead of a fixed one-size-fits-all cutoff.
A real handshake, not a guess
Checked with the same certificate verification a browser relies on, so what you see is what a real visitor would actually get.
Why this matters if your renewal already runs on automation →
Cover your endpoints end to end.
Free plan, no credit card, set up in a few minutes.