diff --git a/libraries/helpers/src/subdomain/all.two.level.subdomain.ts b/libraries/helpers/src/subdomain/all.two.level.subdomain.ts
index b34a2adfb..205d4e8d1 100644
--- a/libraries/helpers/src/subdomain/all.two.level.subdomain.ts
+++ b/libraries/helpers/src/subdomain/all.two.level.subdomain.ts
@@ -1,6 +1,9 @@
 export const allTwoLevelSubdomain = [
     ".com.de",
     ".net.ac",
+    ".ddns.net",
+    ".tplinkdns.com",
+    ".synology.me",
     ".gov.ac",
     ".org.ac",
     ".mil.ac",