feat: add robots

index.html

@@ -5,10 +5,9 @@
   <meta charset="UTF-8" />
   <link rel="icon" type="image/svg+xml" href="/vite.svg" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  
-  <!-- Multi-language Support -->
+  <link rel="canonical" href="https://texpixel.com/" />
   <link rel="alternate" hreflang="zh-CN" href="https://texpixel.com/" />
-  <link rel="alternate" hreflang="en" href="https://texpixel.com/en" />
+  <link rel="alternate" hreflang="en" href="https://texpixel.com/en/" />
   <link rel="alternate" hreflang="x-default" href="https://texpixel.com/" />
   
   <!-- Dynamic Title (will be updated by app) -->
@@ -41,6 +40,34 @@
   <!-- Baidu Verification -->
   <meta name="baidu-site-verification" content="codeva-8zU93DeGgH" />
 
+  <!-- Structured Data -->
+  <script type="application/ld+json">
+    {
+      "@context": "https://schema.org",
+      "@type": "WebSite",
+      "name": "TexPixel",
+      "url": "https://texpixel.com/",
+      "inLanguage": ["zh-CN", "en"],
+      "description": "Formula recognition tool for converting images and PDFs into LaTeX, MathML, and Markdown."
+    }
+  </script>
+  <script type="application/ld+json">
+    {
+      "@context": "https://schema.org",
+      "@type": "SoftwareApplication",
+      "name": "TexPixel",
+      "applicationCategory": "BusinessApplication",
+      "operatingSystem": "Web",
+      "url": "https://texpixel.com/",
+      "offers": {
+        "@type": "Offer",
+        "price": "0",
+        "priceCurrency": "USD"
+      },
+      "description": "Online OCR and formula recognition for printed and handwritten mathematical expressions."
+    }
+  </script>
+
   <!-- Language Detection Script -->
   <script>
     // Update HTML lang attribute based on user preference or browser language
@@ -64,4 +91,4 @@
   <script type="module" src="/src/main.tsx"></script>
 </body>
 
-</html>
+</html>