Let's Encrypt - Free SSL/TLS Certificates

Feb 27, 2020

Let's Encrypt Has Issued a Billion Certificates

We issued our billionth certificate on February 27, 2020. We’re going to use this big round number as an opportunity to reflect on what has changed for us, and for the Internet, leading up to this event.

Feb 19, 2020

Multi-Perspective Validation Improves Domain Validation Security

At Let’s Encrypt we’re always looking for ways to improve the security and integrity of the Web PKI. We’re proud to launch multi-perspective domain validation today because we believe it’s an important step forward for the domain validation process.

Nov 20, 2019

How Let's Encrypt Runs CT Logs

Let’s Encrypt launched a Certificate Transparency (CT) log this past spring. We’re excited to share how we built it in hopes that others can learn from what we did.