diff --git a/404.html b/404.html
index 439cbf1..3827f92 100755
--- a/404.html
+++ b/404.html
@@ -19,6 +19,12 @@
 <head>
   <title>LERMER</title>
   <meta charset="UTF-8">
+        <!--- SEO-->
+        <meta name="author" content="Mathijs Lermer">
+        <meta name="keywords" content="404">
+        <meta name="description" content="404">
+        <meta name="robots" content="noindex">
+
         <!--- assets-->
         <link rel="icon" href="assets/afb/favicon.png" type="image/png">
         <link href="/assets/css/mrl.css" rel="stylesheet">
@@ -55,9 +61,10 @@
 
             <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">
+                <img src="/assets/afb/notlookingfor.gif" alt="USING THE FORCE" width="498" height="211">
 
-            <picture>
-                <img src="/assets/afb/notlookingfor.gif" alt="Don't panic">
             </picture>
             <br><br>
             <div id="knop">
diff --git a/index.html b/index.html
index c3821c4..f22ed34 100755
--- a/index.html
+++ b/index.html
@@ -19,6 +19,11 @@
 <head>
   <title>LERMER</title>
   <meta charset="UTF-8">
+        <!--- SEO-->
+        <meta name="author" content="Mathijs Lermer">
+        <meta name="keywords" content="CV, Mathijs, Lermer, Mathijs Lermer, curriculum vitae, Werkvoorbereider, Bouw">
+        <meta name="description" content="Website van Mathijs Lermer">
+
         <!--- assets-->
         <link rel="icon" href="assets/afb/favicon.png" type="image/png">
         <link href="/assets/css/mrl.css" rel="stylesheet">
@@ -57,8 +62,8 @@
             <p>Hallo en welkom op mijn website, u kunt hier onder andere mijn<a href="/assets/downloads/CURRICULUM VITAE Mathijs Lermer zonder contact gegevens.pdf"> CV </a>bekijken.</p></br>
 
             <picture>
-                <source media="(max-width: 850px)" srcset="/assets/afb/don-t-panic-klein.webp">
-                <img src="/assets/afb/don-t-panic.webp" alt="Don't panic">
+                <source media="(max-width: 850px)" srcset="/assets/afb/don-t-panic-klein.webp" width="278" height="165">
+                <img src="/assets/afb/don-t-panic.webp" alt="Don't panic" width="550" height="330">
             </picture>
 
             <h2>Contactgegevens:</h2>
diff --git a/robots.txt b/robots.txt
new file mode 100644
index 0000000..d773b61
--- /dev/null
+++ b/robots.txt
@@ -0,0 +1,6 @@
+User-agent: *
+Allow: /
+Disallow: /assets/afb/*
+Disallow: /assets/css/*
+Disallow: /assets/fontawsome/*
+Disallow: /assets/font/*
\ No newline at end of file
