certera-io / certera

A central validation server for Let's Encrypt certificates
https://docs.certera.io
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Check expiration date of all certs in chain #17

Open certeraio opened 3 years ago

certeraio commented 3 years ago

Back in May/June 2020, a root certificate from Sectigo/Comodo expired leaving a bunch of people scrambling. Certera's cert monitoring only looks at the top most cert's expiration, not the entire chain. This could have been easily caught by checking the expiration of all certs in the chain.