10 Years of Let's Encrypt Certificates

10 Years of Let's Encrypt Certificates

First seen 9 Dec 2025, 20:43 UTC •LetsencryptNews.Ycombinator •24.3

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On September 14, 2015, Let's Encrypt issued its first publicly-trusted certificate. Over the past decade, it has become the largest certificate authority globally, issuing billions of certificates and standardizing the ACME protocol used throughout the server ecosystem.

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