From 49b8023f3774ee38e2edd0eb06d7a9f1b1b3cd71 Mon Sep 17 00:00:00 2001
From: echo <petrovskidimitar@yandex.com>
Date: Mon, 22 Jun 2026 23:44:51 +0200
Subject: [PATCH] cool fix

---
 src/middleware.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/middleware.ts b/src/middleware.ts
index f2c05c6..2964296 100644
--- a/src/middleware.ts
+++ b/src/middleware.ts
@@ -12,11 +12,13 @@ function getSubdomain(req: NextRequest): string | null {
   const portIndex = host.indexOf(":");
   const hostname = portIndex !== -1 ? host.slice(0, portIndex) : host;
 
-  if (hostname === apex || hostname === `www.${apex}`) return null;
+  const reserved = ["www", "coolify", "mail", "accounts", "clerk", "clk", "clk2", "clkmail"];
+
+  if (hostname === apex || reserved.includes(hostname) || hostname === `www.${apex}`) return null;
 
   if (hostname.endsWith(`.${apex}`)) {
     const sub = hostname.slice(0, hostname.length - apex.length - 1);
-    if (sub && sub !== "www") return sub;
+    if (sub && !reserved.includes(sub)) return sub;
   }
 
   return null;