diff --git a/.changeset/website-custom-domain.md b/.changeset/website-custom-domain.md
new file mode 100644
index 000000000..3475d1c60
--- /dev/null
+++ b/.changeset/website-custom-domain.md
@@ -0,0 +1,5 @@
+---
+"nostream-website": patch
+---
+
+Bind ema.tnsor.network as a wrangler-declared custom domain so every deploy idempotently attaches it to the nostream-website worker.
diff --git a/website/site/wrangler.jsonc b/website/site/wrangler.jsonc
index 65265bcbe..cccfb7a10 100644
--- a/website/site/wrangler.jsonc
+++ b/website/site/wrangler.jsonc
@@ -2,6 +2,12 @@
   "$schema": "node_modules/wrangler/config-schema.json",
   "name": "nostream-website",
   "compatibility_date": "2026-10-01",
+  "routes": [
+    {
+      "pattern": "ema.tnsor.network",
+      "custom_domain": true
+    }
+  ],
   "assets": {
     "directory": "./dist",
     "html_handling": "auto-trailing-slash",