diff --git a/package.json b/package.json
index c93bb6b..fa8cf0d 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,8 @@
     "start": "next start -p 3020",
     "lint": "eslint",
     "typecheck": "tsc --noEmit --pretty false",
-    "check": "pnpm lint && pnpm typecheck && pnpm build"
+    "test:home-navigation": "node scripts/test-home-navigation.mjs",
+    "check": "pnpm lint && pnpm typecheck && pnpm test:home-navigation && pnpm build"
   },
   "dependencies": {
     "@base-ui/react": "^1.5.0",
diff --git a/scripts/test-home-navigation.mjs b/scripts/test-home-navigation.mjs
new file mode 100644
index 0000000..06fb5be
--- /dev/null
+++ b/scripts/test-home-navigation.mjs
@@ -0,0 +1,24 @@
+import assert from "node:assert/strict";
+import { readFile, access } from "node:fs/promises";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const scriptDir = path.dirname(fileURLToPath(import.meta.url));
+const repoRoot = path.resolve(scriptDir, "..");
+const homeSourcePath = path.join(repoRoot, "src/components/product-home.tsx");
+const validatePagePath = path.join(repoRoot, "src/app/validate/page.tsx");
+
+const homeSource = await readFile(homeSourcePath, "utf8");
+
+const validateHrefPattern =
+  /<Link\b[^>]*\bhref=\{?\s*["']\/validate["']\s*\}?[^>]*>/;
+
+assert.match(
+  homeSource,
+  validateHrefPattern,
+  "Expected homepage to contain a static /validate Link href.",
+);
+
+await access(validatePagePath);
+
+console.log("Home navigation contract OK: homepage links to /validate and page exists.");
diff --git a/src/components/product-home.tsx b/src/components/product-home.tsx
index d576cb1..67afd70 100644
--- a/src/components/product-home.tsx
+++ b/src/components/product-home.tsx
@@ -153,6 +153,15 @@ export function ProductHome() {
                 Watch guided replay
               </Link>
             </motion.div>
+            <motion.div variants={itemVariants} className="mt-4">
+              <Link
+                href="/validate"
+                className="inline-flex items-center gap-2 text-[13px] font-semibold text-[var(--text-dim)] transition-colors hover:text-[var(--accent)]"
+              >
+                Validate an event payload
+                <ArrowRight className="size-4" />
+              </Link>
+            </motion.div>
             <motion.div variants={itemVariants} className="mt-14">
               <p className="font-mono text-[10px] font-bold uppercase text-[var(--mute)]">Trusted by leading AI teams</p>
               <div className="mt-5 flex flex-wrap items-center gap-x-7 gap-y-3 text-[12px] font-semibold text-[#8c97ad]">