Tried making seo

app/layout.tsx

@@ -11,6 +11,20 @@ const notoSans = Noto_Sans({
 export const metadata: Metadata = {
   title: "Shava Jaya’s Portfolio",
   description: "My personal online portfolio",
+  openGraph: {
+    title: "Shava Jaya’s Portfolio",
+    description: "My personal online portfolio",
+    url: "https://www.hkaar.vercel.app",  
+    siteName: "Shava Jaya Portfolio",
+    images: [
+      {
+        url: "https://www.hkaar.vercel.app/images/preview.png",
+        width: 1200,
+        height: 630,
+        alt: "Shava Jaya Portfolio"
+      },
+    ],
+  },
 };
 
 export default function RootLayout({

app/robots.ts

@@ -0,0 +1,11 @@
+import type { MetadataRoute } from 'next'
+
+export default function robots(): MetadataRoute.Robots {
+  return {
+    rules: {
+      userAgent: '*',
+      allow: '/',
+    },
+    sitemap: 'https://www.hkaar.vercel.app/sitemap.xml',
+  }
+}

app/sitemap.ts

@@ -0,0 +1,30 @@
+import type { MetadataRoute } from "next";
+
+export default function sitemap(): MetadataRoute.Sitemap {
+    return [
+        {
+            url: "https://hkaar.vercel.app",
+            lastModified: new Date(),
+            changeFrequency: "monthly",
+            priority: 1,
+        },
+        {
+            url: "https://hkaar.vercel.app/projects",
+            lastModified: new Date(),
+            changeFrequency: "monthly",
+            priority: 0.8,
+        },
+        {
+            url: "https://hkaar.vercel.app/blog",
+            lastModified: new Date(),
+            changeFrequency: "monthly",
+            priority: 0.8,
+        },
+        {
+            url: "https://hkaar.vercel.app/contact",
+            lastModified: new Date(),
+            changeFrequency: "yearly",
+            priority: 0.5,
+        },
+    ];
+}