CertMon: Monitoring TLS Certificates

Every 30 seconds, this job checks the expiration dates of TLS certificates. It exposes these dates as metrics for monitoring with Prometheus.

Source code: https://github.com/brawer/certmon

DomainCertificate expires
codesearch.wmcloud.org2026-02-17T11:57:32Z
wmcloud.org2026-02-17T11:57:32Z
query.wikidata.org2026-03-08T22:27:49Z
toolforge.org2026-03-10T10:35:07Z