diff --git a/index.html b/index.html
index c355905..3b56a24 100644
--- a/index.html
+++ b/index.html
@@ -8,19 +8,22 @@
     <meta name="description" content="This is a Vue 3 application that showcases usage of fullcalendar for tutorial purposes.">
     <meta name="keywords" content="vue, fullcalendar, tutorial, example, composition API">
 
-    <meta property="og:title" content="Vue3 - fullcalendar app">
+    <meta property="og:title" content="Vue3 fullcalendar app">
     <meta property="og:site_name" content="Vue3 - fullcalendar app">
     <meta property="og:type" content="website">
     <meta property="og:description" content="This is a Vue 3 application that showcases usage of fullcalendar for tutorial purposes.">
-    <meta property="og:image" content="https://github.com/YSHgroup/vue3-fullcalendar-bootstrap/blob/main/src/assets/calendar-204x192.png">
+    <meta property="og:image" content="https://raw.githubusercontent.com/YSHgroup/vue3-fullcalendar-bootstrap/main/src/assets/fullcalendar-first-page.png">
     <meta property="og:url" content="https://yshgroup.github.io/vue3-fullcalendar-bootstrap/">
+    <meta itemprop="image" content="https://raw.githubusercontent.com/YSHgroup/vue3-fullcalendar-bootstrap/main/src/assets/fullcalendar-first-page.png?format=1500w">
+
 
     <meta name="twitter:card" content="summary_large_image">
     <meta name="twitter:title" content="Vue3 - fullcalendar app">
     <meta name="twitter:description" content="This is a Vue 3 application that showcases usage of fullcalendar for tutorial purposes.">
-    <meta name="twitter:image" content="https://github.com/YSHgroup/vue3-fullcalendar-bootstrap/blob/main/src/assets/calendar-204x192.png">
+    <meta name="twitter:image" content="https://raw.githubusercontent.com/YSHgroup/vue3-fullcalendar-bootstrap/main/src/assets/fullcalendar-first-page.png">
 
     <meta name="robots" content="index, follow">
+    <link rel="image_src" href="https://raw.githubusercontent.com/YSHgroup/vue3-fullcalendar-bootstrap/main/src/assets/fullcalendar-first-page.png?format=1500w">
     <link rel="canonical" href="https://yshgroup.github.io/vue3-fullcalendar-bootstrap/">
   </head>
   <body>
