Now that letsencrypt is more widely released, I took the opportunity to generate the certificates and install them manual on my hosting. In the future I will flip the switch to force HTTPS here. For now I made sure to avoid mixed-content as much as I could.

This was long overdue.

PS: I forgot to thanks @CorySolovewicz who helped in Twitter with the problem of "invalid" private key.

http://www.figuiere.net/hub/blog/?2015/12/04/855-let-s-encrypt-all-the-things