diff --git a/src/docs/markdown/automatic-https.md b/src/docs/markdown/automatic-https.md
index 3855fc8..3b8cc20 100644
--- a/src/docs/markdown/automatic-https.md
+++ b/src/docs/markdown/automatic-https.md
@@ -115,7 +115,7 @@ All hostnames (domain names) qualify for fully-managed certificates if they:
 
 In addition, hostnames qualify for publicly-trusted certificates if they:
 
-- are not localhost (including `.localhost` and `.local` TLDs)
+- are not localhost (including `.localhost`, `.local` and `.home.arpa` TLDs)
 - are not an IP address
 - have only a single wildcard `*` as the left-most label