Keynote: Ten Years as a Free, Open, and Automated Certificate Authority
summary
Lets Encrypt issues 7 million certificates per day and serves over 600 million websites, helped push US HTTPS to ~90% and global to ~80%. Infrastructure includes CT logs built with AWS, multi‑perspective validation, short‑lived certificates and investments in memory safety and the Proimo project. Plans include issuing IP address certificates, moving toward 100 million per day issuance, shortening lifetimes from 90 to ~6 days, and adding post‑quantum crypto support.
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