Add youkan.is-a.dev domain

domains/youkan.json

@@ -0,0 +1,11 @@
+{
+  "owner": {
+    "username": "ouiegbfwvdsj",
+    "discord": "1314878809287426081"
+  },
+  "records": {
+    "A": [
+      "211.15.31.248"
+    ]
+  }
+}