WordPress.com 宣佈將全面提供 HTTPS 服務:「HTTPS Everywhere: Encryption for All WordPress.com Sites」。
其中 wordpress.com 應該是買 wildcard SSL certificate 來做,而 custom domain 的部份將會透過 Let's Encrypt 來做:
The Let’s Encrypt project gave us an efficient and automated way to provide SSL certificates for a large number of domains. We launched the first batch of certificates in January 2016 and immediately started working with Let’s Encrypt to make the process smoother for our massive and growing list of domains.
這包括了對 SPDY + HTTP/2 的支援,使得 HTTPS 的速度不比 HTTP 差 (甚至更快)。