The certificate presented is not a Cloudflare one.
So it might be that they're using a custom one, which I believe is passed through end-to-end.
Cloudflare doesn't have their own CA. They use a bunch of third party CAs (LetsEncrypt, Google and W2)
Cloudflare doesn't have their own CA. They use a bunch of third party CAs (LetsEncrypt, Google and W2)