Hackernews posts about Let's Encrypt

Let's Encrypt is a free, open certificate authority that provides SSL/TLS encryption certificates to websites and applications, promoting online trust and security through its automated issuance process.

Related: Peter Eckersley  
  1. LetsEncrypt Outage (letsencrypt.status.io)
  2. Let's Encrypt adds random JSON fields (community.letsencrypt.org)