Letsencrypt certificate suddendly became not valid only in chrome

Everything was fine on all browsers in my last weeks, today suddendly the certificate is not longer valid only in chrome, but ok for firefox and safari

See other images here: https://jsfiddle.net/to3hpz5x/show/

Without the domain name, it’s difficult to debug the system and work out exactly what’s wrong.

I’d suspect that you haven’t got the correct chain certificates uploaded onto the server ( it probably need the fullchain.pem rather than chain.pem)

It worked fine until today. On firefox and safari is still ok

What might have happened to Chrome?

You probably mean "fullchain.pem rather than cert.pem"? :wink: Because just chain.pem without cert.pem would fail miserably in any browser ofcourse and cert.pem with chain.pem would work perfectly, because although deprecated, SSLCertificateChainFile gives you a good chain of certificates (if used in addition to cert.pem ofcourse). Therefore, the likely scenario is that @ale has his server configured with just cert.pem and privkey.pem :neutral_face:

Agreed - was just posting a quick reply as the family are all here for the celebrations :wink: