Let's Encrypt
Internet Security Research Group (ISRG) · DNS & domains
Nonprofit certificate authority that issues free, automatically renewable TLS certificates through the ACME protocol
MPL-2.0FreeNov 2, 2026
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Web Authentication (WebAuthn)
W3C Web Authentication Working Group (with the FIDO Alliance) · Identity & access
W3C standard defining the browser API for creating and using public-key credentials, the basis of passkeys and FIDO2 hardware-key authentication
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