diff --git a/doc/example/letsencrypt-dns/domains.conf b/doc/example/letsencrypt-dns/domains.conf
new file mode 100644
index 00000000..6e714f10
--- /dev/null
+++ b/doc/example/letsencrypt-dns/domains.conf
@@ -0,0 +1,2 @@
+### Replace with your domain ###
+*.example.com example.com