Improving the SRE Experience for 10 Years as a Free, Open, and Automated Certificate Authority

This conference talk from SREcon25 Americas explores how Let's Encrypt has revolutionized HTTPS adoption over the past decade as a free, open, and automated certificate authority. Join Matthew McPherrin from the Internet Security Research Group as he delves into Let's Encrypt's history and impact on securing over 500 million websites. Discover valuable context for managing TLS certificates, learn about upcoming changes to the service, and understand how Let's Encrypt has worked to simplify the lives of SREs worldwide while benefiting from community contributions. The 38-minute presentation provides both historical perspective and practical guidance for the future of web security through automated certificate management.