diff --git a/frontend/.env.production b/frontend/.env.production
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index 0000000..21982dd
--- /dev/null
+++ b/frontend/.env.production
@@ -0,0 +1,6 @@
+# See `https://kit.svelte.dev/docs/adapter-node#environment-variables-origin-protocol-header-and-host-header`.
+ORIGIN=https://todo.example.com
+
+# See `https://kit.svelte.dev/docs/adapter-node#environment-variables-address-header-and-xff-depth`.
+ADDRESS_HEADER="X-Forwarded-For"
+XFF_DEPTH="2"