Let's Encrypt
Certificate authority which provides free domain-validated certificates / From Wikipedia, the free encyclopedia
Let's Encrypt is a non-profit certificate authority run by Internet Security Research Group (ISRG) that provides X.509 certificates for Transport Layer Security (TLS) encryption at no charge. It is the world's largest certificate authority,[3] used by more than 300 million websites,[4] with the goal of all websites being secure and using HTTPS. The Internet Security Research Group (ISRG), the provider of the service, is a public benefit organization.[5] Major sponsors include the Electronic Frontier Foundation (EFF), the Mozilla Foundation, OVH, Cisco Systems, Facebook, Google Chrome, Internet Society, AWS, NGINX, and Bill and Melinda Gates Foundation.[6] Other partners include the certificate authority IdenTrust,[7] the University of Michigan (U-M),[8] and the Linux Foundation.[9]
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Formation | November 18, 2014; 9 years ago (2014-11-18) |
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Founder | |
Headquarters | San Francisco, California, U.S. |
Coordinates | 37.800322°N 122.449951°W / 37.800322; -122.449951 |
Services | X.509 certificate authority |
Parent organization | Internet Security Research Group |
Budget (2019) | US$3.6 million[1] |
Staff (2023) | 27[2] |
Website | letsencrypt![]() |