It's weird, on my mobile I see the Comodo (Cloudflare) certificate still. However on my PC (I've tried several browsers) I see Let's Encrypt.
CN = Let's Encrypt Authority X3
O = Let's Encrypt
C = US
11 May 2018 08:46:18 - 09 August 2018 08:46:18
CN = www.portorleans.org
DNS Name=www.portorleans.org[1]Authority Info Access
Access Method=On-line Certificate Status Protocol (1.3.6.1.5.5.7.48.1)
Alternative Name:
URL=http://ocsp.int-x3.letsencrypt.org
[2]Authority Info Access
Access Method=Certification Authority Issuer (1.3.6.1.5.5.7.48.2)
Alternative Name:
URL=http://cert.int-x3.letsencrypt.org/KeyID=a84a6a63047dddbae6d139b7a64565eff3a8eca1
s/n 04:44:BB:3F:8F:14:EC:3D:F0:2E:E7:0A:2E:D1:86:6C:DF:F8
To be honest, if I plan to be using SSL on my webserver then I'm not sure if there's any point in using Cloudflare anyway - I thought its main job is to optimise and cache the content served, and if that content is secured end-to-end then surely it shouldn't be able to intercept and do that anyway?
Andre