Let's Encrypt provides free SSL/TLS certificates that are widely used for securing web services, VPNs, and other network communications. In practical use, such as with websites, routers, or VPNs, the Let's Encrypt certificate and key enable HTTPS connections or secure tunnels. Generating a Let's Encrypt certificate and key follows similar steps: | Let's Encrypt provides free SSL/TLS certificates that are widely used for securing web services, VPNs, and other network communications. In practical use, such as with websites, routers, or VPNs, the Let's Encrypt certificate and key enable HTTPS connections or secure tunnels. Generating a Let's Encrypt certificate and key follows similar steps: |