diff --git a/domains/caodoc.json b/domains/caodoc.json
index e5aba3242..5dd37e2a2 100644
--- a/domains/caodoc.json
+++ b/domains/caodoc.json
@@ -4,6 +4,6 @@
         "email": "dochicao2306@gmail.com"
     },
     "record": {
-            "CNAME": "caodoc.github.io"
+            "TXT": "c3aa36c2b7f2e2bf94a92b760760ca"
     }
 }