Does uptime monitoring checks detect SSL expiry?

[dheerajpanyam]

I have an application deployed on GCE and Cloud Run and using LE certs. Can the uptime checks feature in GCP detect SSL expiry?

HTTP status code returned when SSL expires is still 200 OK i guess, hence uptime check won't work? 

[mokit]

Hi, @dheerajpanyam.

Yes, the uptime checker is supported the monitoring of the SSL expiration. You can check this article - Simplify SSL Expiration Monitoring with GCP Uptime to implement this on your project. Additional you can check this also -

https://cloud.google.com/monitoring/uptime-checks#about_uptime_checks.

Regards,
Mokit

[dheerajpanyam]

Thanks @mokit . Let me check the article

[dheerajpanyam]

@mokit I don't think it supports wildcard SSL certs.

[mokit]

@dheerajpanyam Are you referring to a wildcard SSL certificate? If so, there shouldn’t be any issues implementing uptime monitoring, as it will track the expiry date and there won’t be any problems with any host domain.