diff --git a/index.html b/index.html
index 727b32c..3c73f5b 100644
--- a/index.html
+++ b/index.html
@@ -1,9 +1,12 @@
 <!DOCTYPE html>
-<html xmlns:xlink="http://www.w3.org/1999/xlink">
+<html xmlns:xlink="http://www.w3.org/1999/xlink"  prefix="og: http://ogp.me/ns#">
 <head>
   <title></title>
   <link href="/rubenvandeven.jsonld" rel="alternate" type="application/ld+json" />
   <link rel="stylesheet" href="/assets/css/portfolio.css">
+  <meta property="og:title" content="Ruben van de Ven" />
+  <meta property="og:type" content="website" />
+  <meta property="og:image" content="/assets/og_image2.png" />
 </head>
 <body>
 <svg id="portfolioGraph" width="800" height="600" reserveAspectRatio="xMidYMid" viewBox="-400 -300 800 600" xmlns="http://www.w3.org/2000/svg" xmlns:xlink= "http://www.w3.org/1999/xlink">
