diff --git a/sandbox/index.html b/sandbox/index.html
index 4407547366..c0bc1c745f 100644
--- a/sandbox/index.html
+++ b/sandbox/index.html
@@ -2,12 +2,16 @@
 <html lang="en">
 
   <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Kongponents Sandbox</title>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width,initial-scale=1.0">
+    <meta name="robots" content="noindex nofollow" />
+    <link rel="icon" href="/favicon.ico">
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono&display=swap"
+      rel="stylesheet">
+    <title>Kongponents Sandbox</title>
     <style>
       html,
       body {
