Here&#x27;s the issuer from the certificate I got, and I believe it was the (beta) production one and not the development endpoint.<p>Issuer: C=US, O=Let&#x27;s Encrypt, CN=Let&#x27;s Encrypt Authority X1<p>Possibly user error still, but I use HTTPS across all my personal sites and they all rate well on third-party tests so I&#x27;m not a total noob (I hope...).