[throw0101a]

Wouldn't it be easier to just put it in your existing monitoring system?

* https://github.com/matteocorti/check_ssl_cert

* https://www.monitoring-plugins.org/doc/man/check_http.html

* https://exchange.nagios.org/directory/Plugins/Network-Protoc...

[retzkek]

Or with Prometheus: https://github.com/prometheus/blackbox_exporter

https endpoints will include the probe_ssl_earliest_cert_expiry metric, which is the expiration in UNIX epoch seconds. Use with the builtin time() function.

[adrukh]

Absolutely!

But... my app automatically finds new relevant hosts and adds them to the monitoring cycles, needing 0 intervention after you tell it which domains interest you. Not saying it's everyone's need, but I'm here for those who need just this :)

[giomasce]

Right. And you don't have do depend on yet another external service for a simple task.