Re:GitHub Pages generated a TLS cert for my own domain
by icebraining on Wednesday April 18, 2018 @07:54AM
(#16866549)
CertSpotter is a free service and open source project for monitoring CT logs: https://sslmate.com/certspotter/
(I'm not affiliated)
Oh Dear! looks really interesting (though I won't pay for monitoring my personal blog).
I am not sure I fully understand your HTTP-only remark, since how the communication is made (HTTP-only, HTTPS, IMAP, etc.) is not related on how the certificate is generated (which implies CT).