diff --git a/src/app/blog/[slug]/page.tsx b/src/app/blog/[slug]/page.tsx
deleted file mode 100644
index dc7de45..0000000
--- a/src/app/blog/[slug]/page.tsx
+++ /dev/null
@@ -1,15 +0,0 @@
-import { notFound, permanentRedirect } from "next/navigation";
-import { getPost } from "@/lib/meshkee";
-import { blogPath } from "@/lib/urls";
-
-/** Legacy /blog/{slug} → canonical /blog/{id}/{titleSlug} */
-export default async function LegacyBlogRedirect({
-  params,
-}: {
-  params: Promise<{ slug: string }>;
-}) {
-  const { slug } = await params;
-  const post = await getPost(slug);
-  if (!post) notFound();
-  permanentRedirect(blogPath(post));
-}
diff --git a/src/app/products/[slug]/page.tsx b/src/app/products/[slug]/page.tsx
deleted file mode 100644
index 51bbaf7..0000000
--- a/src/app/products/[slug]/page.tsx
+++ /dev/null
@@ -1,15 +0,0 @@
-import { notFound, permanentRedirect } from "next/navigation";
-import { getProduct } from "@/lib/meshkee";
-import { productPath } from "@/lib/urls";
-
-/** Legacy /products/{slug} → canonical /products/{id}/{nameFaSlug} */
-export default async function LegacyProductRedirect({
-  params,
-}: {
-  params: Promise<{ slug: string }>;
-}) {
-  const { slug } = await params;
-  const product = await getProduct(slug);
-  if (!product) notFound();
-  permanentRedirect(productPath(product));
-}
diff --git a/src/middleware.ts b/src/middleware.ts
new file mode 100644
index 0000000..1c26462
--- /dev/null
+++ b/src/middleware.ts
@@ -0,0 +1,69 @@
+import { NextResponse, type NextRequest } from "next/server";
+import { slugifyFa } from "@/lib/slugify";
+import { TENANT_DOMAIN } from "@/lib/meshkee";
+
+const API_BASE = "https://api.meshkee.com/api/v1";
+
+function canonicalProductPath(product: { id: string; nameFa: string }) {
+  return `/products/${product.id}/${encodeURIComponent(slugifyFa(product.nameFa))}`;
+}
+
+function canonicalBlogPath(post: { id: string; nameFa?: string; titleFa?: string; title?: string }) {
+  const title = post.nameFa || post.titleFa || post.title || "post";
+  return `/blog/${post.id}/${encodeURIComponent(slugifyFa(title))}`;
+}
+
+async function redirectLegacyProduct(slug: string, request: NextRequest) {
+  const res = await fetch(
+    `${API_BASE}/tenants/${TENANT_DOMAIN}/products/${encodeURIComponent(slug)}`,
+    { next: { revalidate: 300 } },
+  );
+  if (!res.ok) return null;
+  const data = (await res.json()) as { product?: { id: string; nameFa: string } };
+  const product = data.product;
+  if (!product) return null;
+  return NextResponse.redirect(new URL(canonicalProductPath(product), request.url), 308);
+}
+
+async function redirectLegacyBlog(slug: string, request: NextRequest) {
+  const res = await fetch(
+    `${API_BASE}/tenants/${TENANT_DOMAIN}/blogs/${encodeURIComponent(slug)}`,
+    { next: { revalidate: 300 } },
+  );
+  if (!res.ok) return null;
+  const data = (await res.json()) as {
+    blog?: { id: string; nameFa?: string; titleFa?: string; title?: string };
+    post?: { id: string; nameFa?: string; titleFa?: string; title?: string };
+  };
+  const post = data.blog ?? data.post;
+  if (!post) return null;
+  return NextResponse.redirect(new URL(canonicalBlogPath(post), request.url), 308);
+}
+
+export async function middleware(request: NextRequest) {
+  const { pathname } = request.nextUrl;
+
+  const productMatch = pathname.match(/^\/products\/([^/]+)$/);
+  if (productMatch) {
+    const segment = decodeURIComponent(productMatch[1]);
+    if (segment !== "category" && !/^\d+$/.test(segment)) {
+      const redirect = await redirectLegacyProduct(segment, request);
+      if (redirect) return redirect;
+    }
+  }
+
+  const blogMatch = pathname.match(/^\/blog\/([^/]+)$/);
+  if (blogMatch) {
+    const segment = decodeURIComponent(blogMatch[1]);
+    if (!/^\d+$/.test(segment)) {
+      const redirect = await redirectLegacyBlog(segment, request);
+      if (redirect) return redirect;
+    }
+  }
+
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: ["/products/:path*", "/blog/:path*"],
+};