diff --git a/index.html b/index.html
index 8dee456..29bb093 100644
--- a/index.html
+++ b/index.html
@@ -1,9 +1,25 @@
 <!DOCTYPE html>
-<html lang="vi">
+<html lang="en">
 <head>
-    <meta charset="UTF-8">
+<meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Punklorde's Rainbow City</title>
+    
+    <meta name="description" content="The hub for data and optimization tools for Punklorde.">
+    <meta name="theme-color" content="#bd93f9">
+    
+    <meta property="og:type" content="website">
+    <meta property="og:url" content="https://punklorde.org/">
+    <meta property="og:title" content="Punklorde's Rainbow City">
+    <meta property="og:description" content="The hub for data and optimization tools for Punklorde.">
+    <meta property="og:image" content="https://cdn.punklorde.org/punklorde.jpg">
+
+    <meta name="twitter:card" content="summary_large_image">
+    <meta name="twitter:url" content="https://punklorde.org/">
+    <meta name="twitter:title" content="Punklorde's Rainbow City">
+    <meta name="twitter:description" content="The hub for data and optimization tools for Punklorde.">
+    <meta name="twitter:image" content="https://cdn.punklorde.org/punklorde.jpg">
+
     <link rel="icon" href="https://cdn.punklorde.org/punklorde-icon.png" type="image/png">
     <style>
         * {
