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Let's Encrypt Setup

Let's Encrypt offers free TLS certificate and most ACME client work with Let's Encrypt without any special configuration.

Unfortunately, Let's Encrypt has strict rate limits. You can usually avoid these by trying to issue certificates in the staging environment first.

Consider ZeroSSL if you are a large organization or require additional services.


When using Let's Encrypt you should first try issuing a certificate with the Staging environment. This avoids getting rate limited. Certificates created by the staging environment are not trusted by default on any browser, so you'll still see certificate warning messages, these are expected.

Once you've got that working, switch to Let's Encrypt Production which uses certificates that are widely trusted.