diff --git a/domains/_cf-custom-hostname.kimjinwoo.json b/domains/_cf-custom-hostname.kimjinwoo.json
new file mode 100644
index 0000000000..f27f45e9ef
--- /dev/null
+++ b/domains/_cf-custom-hostname.kimjinwoo.json
@@ -0,0 +1,11 @@
+{
+  "description": "Cloudflare custom hostname verification for OpenAI Sites",
+  "owner": {
+    "username": "K-im-jinwoo"
+  },
+  "records": {
+    "TXT": [
+      "e53ea30b-e61c-411d-8614-a192de8628c9"
+    ]
+  }
+}
diff --git a/domains/_openai-site-verification.kimjinwoo.json b/domains/_openai-site-verification.kimjinwoo.json
new file mode 100644
index 0000000000..34b4f9fe67
--- /dev/null
+++ b/domains/_openai-site-verification.kimjinwoo.json
@@ -0,0 +1,11 @@
+{
+  "description": "OpenAI Sites domain ownership verification",
+  "owner": {
+    "username": "K-im-jinwoo"
+  },
+  "records": {
+    "TXT": [
+      "openai-site-verification=aVf94wGifShRd64W7i3mg52Kqg0fM2ZX6l8JE4-g3V8"
+    ]
+  }
+}
diff --git a/domains/kimjinwoo.json b/domains/kimjinwoo.json
new file mode 100644
index 0000000000..7c9c7dfe03
--- /dev/null
+++ b/domains/kimjinwoo.json
@@ -0,0 +1,9 @@
+{
+  "description": "Personal portfolio for business and AI automation development",
+  "owner": {
+    "username": "K-im-jinwoo"
+  },
+  "records": {
+    "CNAME": "custom-domains.chatgpt.site"
+  }
+}