-# Path to certificate authority (default: https://acme-v02.api.letsencrypt.org/directory)
-#CA="https://acme-v02.api.letsencrypt.org/directory"
-
-# Path to staging certificate authority (for testing purposes)
-#CA="https://acme-staging-v02.api.letsencrypt.org/directory"
+# URL to certificate authority or internal preset
+# Presets: letsencrypt, letsencrypt-test, zerossl, buypass, buypass-test
+# default: letsencrypt
+#CA="letsencrypt"