diff --git a/404.html b/404.html
index 4d71b41..eb272e9 100755
--- a/404.html
+++ b/404.html
@@ -17,27 +17,36 @@
 <html lang="nl">
 
 <head>
-  <title>LERMER</title>
   <meta charset="UTF-8">
         <!--- SEO-->
+        <title>Not the page you are looking for</title>
         <meta name="author" content="Mathijs Lermer">
         <meta name="keywords" content="404">
         <meta name="description" content="404">
-        <meta name="robots" content="noindex">
+        <meta name="robots" content="none">
+        <link rel="canonical" href="https://www.lermer.nl">
+        
+        <!--- Open Graph Meta Tags -->
+        <meta property="og:site_name" content="Mathijs Ronald Lermer">
+        <meta property="og:title" content="404">
+        <meta property="og:description" content="Not the page you are looking for">
+        <meta property="og:type" content="404">
+        <meta property="og:url" content="https://www.lermer.nl">
+        <meta property="og:image" content="https://www.lermer.nl/assets/afb/logo_hoger.png">
 
-        <!--- Open Graph-->
-        <meta property="og:site_name" content="Mathijs Lermer" />
-        <meta property="og:title" content="Mathijs Lermer" />
-        <meta property="og:description" content="Website van Mathijs Lermer" />
-        <meta property="og:type" content="404" />
-        <meta property="og:url" content="https://www.lermer.nl" />
-        <meta property="og:image" content="https://www.lermer.nl/assets/afb/MRL-Logo-doorz.png" />
+        <!-- Twitter Meta Tags -->
+        <meta name="twitter:title" content="Mathijs Ronald Lermer">
+        <meta name="twitter:description" content="Not the page you are looking for">
+        <meta name="twitter:card" content="summary_large_image">
+        <meta name="twitter:image" content="https://www.lermer.nl/assets/afb/logo_hoger.png">
+        <meta property="twitter:domain" content="lermer.nl">
+        <meta property="twitter:url" content="https://www.lermer.nl/">
 
         <!--- assets-->
         <link rel="icon" href="assets/afb/favicon.png" type="image/png">
         <link href="/assets/css/mrl.css" rel="stylesheet">
         <link href="/assets/Fork-Awesome/css/fork-awesome.min.css" rel="stylesheet">
-        <script type="text/javascript" src="/assets/js/mrl.js"></script>
+        <script src="/assets/js/mrl.js"></script>
         <!--- site-->
   <meta name="viewport" content="width=device-width, initial-scale=1" >
 </head>
@@ -48,15 +57,16 @@
       <section id="sectie_kop">
         <div class="container">
           <header>
-            <logo><a href="/">LERMER.NL</a></logo>
+            <a href="/" class="logo">LERMER.NL</a>
             <nav id="main_menu_01">
               <ul>
-                <li> <a href="/index.html">Welkom</a></Li>
-                <li> <a href="/assets/downloads/CURRICULUM VITAE Mathijs Lermer zonder contact gegevens.pdf">Curriculum vitae</a></Li>
+                <li class="active"> <a href="/index.html">Welkom</a></Li>
+                <li> <a href="/assets/downloads/CURRICULUM_VITAE_Mathijs_Lermer_zonder_contact_gegevens.pdf">Curriculum vitae</a></Li>
               </ul>
             </nav>
       
-            <a href='#' id="menuknopje" onclick="hamburgermenuknopje()" style="display: none;"><i class="fa fa-bars" aria-hidden="true"></i></a>
+            <a href='#' id="menuknopje" onclick="hamburgermenuknopje()" style="display: none;">
+            <i class="fa fa-bars" aria-hidden="true"></i></a>
       
           </header>
         </div>
@@ -69,19 +79,15 @@
             <h1>404</h1>
             <p>This is not the page you are looking for.<br><br><br>
               <picture>
-                <source media="(max-width: 498px)" srcset="/assets/afb/notlookingfor.gif" alt="USING THE FORCE" width="348" height="147">
+                <source media="(max-width: 498px)" srcset="/assets/afb/notlookingfor.gif" width="348" height="147">
                 <img src="/assets/afb/notlookingfor.gif" alt="USING THE FORCE" width="498" height="211">
 
             </picture>
             <br><br>
-            <div id="knop">
-              <a href="/" class="knop knop_contact">MOVE ALONG</a><br>
-            </div>
+              <div id="knop">
+                <a href="/" class="knop knop_contact">MOVE ALONG</a><br>
+              </div>
           </div>
-
-
-
-
         </div>
       </section>
     </div>
@@ -98,20 +104,23 @@
                     <li><a href="mailto:info@lermer.nl" title="e-mail" rel="me"> <i class="fa fa-at fa-lg" aria-hidden="true"></i></a></Li>
                     <li><a href="https://matrix.to/#/@mathijs:lermer.nl" title="Bericht via MATRIX"  rel="me"> <i class="fa fa-matrix-org fa-lg" aria-hidden="true"></i></a></Li>
                     <li><a href="https://mastodon.lermer.nl/@mathijs" title="Mastodon" rel="me"> <i class="fa fa-mastodon fa-lg" aria-hidden="true"></i></a></Li>
-              </div>
+                  </ul>
+                </div>
               </td>
               <td style="width:2%">
                 <div class="footer-links-bar">
                   <ul>
                     <li><a>|</a></Li>
-              </div>
+                  </ul>
+                </div>
               </td>
               <td style="width:45%">
                 <div class="footer-links-l">
                   <ul>
                     <li><a href="https://git.lermer.nl/Mathijs/lermer.nl" title="GIT" rel="external"> <i class="fa fa-code-fork fa-lg" aria-hidden="true"></i></a></Li>
-                    <li><a href="https://uptime.lermer.nl/status/overzicht"  title="Uptime"s rel="external"> <i class="fa fa-arrow-up fa-lg" aria-hidden="true"></i></a></Li>
-              </div>
+                    <li><a href="https://uptime.lermer.nl/status/overzicht"  title="Uptime" rel="external"> <i class="fa fa-arrow-up fa-lg" aria-hidden="true"></i></a></Li>
+                    </ul>
+                </div>
               </td>
             </tr>
           </table>        
