New certificate not valid

[9peppe]

@JuergenAuer

PS: Your server allows only Tls.1.3. That’s wrong. Tls.1.2 isn’t deprecated, a working Tls.1.2 is required.

That's... unusual.

@Sebbo: look here:

• https://ssl-config.mozilla.org/
• Security/Server Side TLS - MozillaWiki
• "How to get 100% on ssllabs.com with nginx"