feat: add middleware for 301 redirect from legacy domain to canonical domain

Author: JoachimLK

server/middleware/domain-redirect.ts

@@ -0,0 +1,21 @@
+/**
+ * 301 redirect from the legacy applirank.com domain to reqcore.com.
+ *
+ * If the old domain's DNS still points to this server (via Cloudflare or Railway),
+ * this middleware redirects all traffic to the new domain with a permanent 301,
+ * preserving the original path and query string so Google transfers link equity.
+ *
+ * Also handles non-www → www normalization if ever needed, and ensures HTTPS.
+ */
+const LEGACY_HOSTS = new Set(['applirank.com', 'www.applirank.com'])
+const CANONICAL_ORIGIN = 'https://reqcore.com'
+
+export default defineEventHandler((event) => {
+  const host = getRequestHeader(event, 'host')?.split(':')[0]?.toLowerCase()
+  if (!host || !LEGACY_HOSTS.has(host)) return
+
+  const url = getRequestURL(event)
+  const target = `${CANONICAL_ORIGIN}${url.pathname}${url.search}`
+
+  return sendRedirect(event, target, 301)
+})