We’re excited that support for getting and managing TLS certificates via the ACME protocol is coming to the Apache HTTP Server Project (httpd). ACME is the protocol used by Let’s Encrypt, and hopefully other Certificate Authorities in the future. We anticipate this feature will significantly aid the adoption of HTTPS for new and existing websites. We created Let’s Encrypt in order to make getting

Please note that the Let's Encrypt Growth and Let's Encrypt Certificates Issued Per Day charts are undergoing updates and may not reflect the most recent data.

We’re happy to announce that Let’s Encrypt has entered Public Beta. Invitations are no longer needed in order to get free certificates from Let’s Encrypt. It’s time for the Web to take a big step forward in terms of security and privacy. We want to see HTTPS become the default. Let’s Encrypt was built to enable that by making it as easy as possible to get and manage certificates. We’d like to than

Let’s Encrypt will enter Public Beta on December 3, 2015. Once we’ve entered Public Beta our systems will be open to anyone who would like to request a certificate. There will no longer be a requirement to sign up and wait for an invitation. Our Limited Beta started on September 12, 2015. We’ve issued over 11,000 certificates since then, and this operational experience has given us confidence that

We’re sometimes asked why we only offer certificates with ninety-day lifetimes. People who ask this are usually concerned that ninety days is too short and wish we would offer certificates lasting a year or more, like some other CAs do. Ninety days is nothing new on the Web. According to Firefox Telemetry, 29% of TLS transactions use ninety-day certificates. That’s more than any other lifetime. Fr

We’re pleased to announce that we’ve received cross-signatures from IdenTrust, which means that our certificates are now trusted by all major browsers. This is a significant milestone since it means that visitors to websites using Let’s Encrypt certificates can enjoy a secure browsing experience with no special configuration required. Both Let’s Encrypt intermediate certificates, Let’s Encrypt Aut

Let’s Encrypt passed another major milestone by issuing our first certificate. You can see it in action here. Our cross signature is not yet in place, however this certificate is fully functional for clients with the ISRG root in their trust store. When we are cross signed, approximately a month from now, our certificates will work just about anywhere while our root propagates. We submitted initia