diff --git a/domains/trantienhunggg-is-a-dev.json b/domains/trantienhunggg-is-a-dev.json
deleted file mode 100644
index 129cf035a7..0000000000
--- a/domains/trantienhunggg-is-a-dev.json
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "owner": {
-    "username": "trantienhunggg",
-    "email": "trantienhung21122004@gmail.com"
-  },
-  "records": {
-    "A": [
-      "216.198.79.1"
-    ]
-  }
-}
diff --git a/tests/json.test.js b/tests/json.test.js
index e3d79e801e..b59fd342a8 100644
--- a/tests/json.test.js
+++ b/tests/json.test.js
@@ -116,6 +116,7 @@ async function validateFileName(t, file) {
 
     const rootSubdomain = subdomain.split(".").pop();
     t.false(rootSubdomain.startsWith("_"), `${file}: Root subdomains should not start with an underscore`);
+    t.false(rootSubdomain.includes("is-a-dev"), `${file}: Root subdomains should not contain is-a-dev`);
 }
 
 async function processFile(file, t) {