---
type: entity
title: Let's Encrypt
tags: [certificate-authority, security, pki]
related: [dfn-pki-zertifikate]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_dfn_pki_zertifikate.md"]
---

# Let's Encrypt

**Let's Encrypt** is a free, automated, and open certificate authority. The University of Greifswald makes this service available as an alternative to the official DFN-PKI certificates for all university-owned domains.
