fix: SEO hygiene — canonical tags, trailing slash, sitemap cleanup

Add explicit canonical URLs to /privacy and /terms for consistency.
Set trailingSlash: false to prevent duplicate URL indexing.
Use dynamic lastModified for compare pages instead of hardcoded date.
Remove /privacy and /terms from sitemap to focus crawl budget.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: irparent

website/next.config.ts

@@ -1,6 +1,7 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
+  trailingSlash: false,
   reactCompiler: true,
   headers: async () => [
     {

website/src/app/privacy/page.tsx

@@ -5,6 +5,7 @@ import { Footer } from "@/components/footer";
 export const metadata: Metadata = {
   title: "Privacy Policy — Iris",
   description: "How Iris collects, uses, and protects your data.",
+  alternates: { canonical: "https://iris-eval.com/privacy" },
 };
 
 export default function Privacy(): React.ReactElement {

website/src/app/sitemap.ts

@@ -22,7 +22,7 @@ export default function sitemap(): MetadataRoute.Sitemap {
 
   const compareEntries: MetadataRoute.Sitemap = comparePages.map((slug) => ({
     url: `${baseUrl}/compare/${slug}`,
-    lastModified: new Date("2026-03-17"),
+    lastModified: new Date(),
     changeFrequency: "monthly",
     priority: 0.6,
   }));
@@ -48,15 +48,5 @@ export default function sitemap(): MetadataRoute.Sitemap {
     },
     ...blogEntries,
     ...compareEntries,
-    {
-      url: `${baseUrl}/privacy`,
-      changeFrequency: "yearly",
-      priority: 0.3,
-    },
-    {
-      url: `${baseUrl}/terms`,
-      changeFrequency: "yearly",
-      priority: 0.3,
-    },
   ];
 }

website/src/app/terms/page.tsx

@@ -5,6 +5,7 @@ import { Footer } from "@/components/footer";
 export const metadata: Metadata = {
   title: "Terms of Use — Iris",
   description: "Terms and conditions for using Iris and iris-eval.com.",
+  alternates: { canonical: "https://iris-eval.com/terms" },
 };
 
 export default function Terms(): React.ReactElement {