diff --git a/404.html b/404.html
index 690057c..1056087 100644
--- a/404.html
+++ b/404.html
@@ -1,8 +1,17 @@
 <!DOCTYPE html>
 <html>
 
+<style type="text/css" media="screen">
+    h2[id]::before {
+        display: block; 
+        content: " "; 
+        margin-top: -125px; 
+        height: 125px; 
+    }
+</style>
+
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -13,8 +22,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
+    </script>  -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/CoC.html b/CoC.html
index 3b7146d..2756e10 100644
--- a/CoC.html
+++ b/CoC.html
@@ -1,8 +1,17 @@
 <!DOCTYPE html>
 <html>
 
+<style type="text/css" media="screen">
+    h2[id]::before {
+        display: block; 
+        content: " "; 
+        margin-top: -125px; 
+        height: 125px; 
+    }
+</style>
+
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -13,9 +22,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/about.html b/about.html
index 33ade79..9464189 100644
--- a/about.html
+++ b/about.html
@@ -12,7 +12,7 @@
 
 
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -23,8 +23,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/acknowledging.html b/acknowledging.html
index 4d4c3dd..0aca0a0 100644
--- a/acknowledging.html
+++ b/acknowledging.html
@@ -12,7 +12,7 @@
 
 
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -23,8 +23,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
@@ -117,7 +131,7 @@
 <p id="bibtex-proc" style="display:none;">
 @INPROCEEDINGS{gammapy:2017,
 author = {{Deil}, C. and {Zanin}, R. and {Lefaucheur}, J. and {Boisson}, C. and
-         {Khelifi}, B. and {Terrier}, R. and {Wood}, M. and {Mohrmann}, L. and
+         {Khélifi}, B. and {Terrier}, R. and {Wood}, M. and {Mohrmann}, L. and
          {Chakraborty}, N. and {Watson}, J. and {Lopez-Coto}, R. and
          {Klepser}, S. and {Cerruti}, M. and {Lenain}, J.~P. and {Acero}, F. and
          {Djannati-Ata{\"\i}}, A. and {Pita}, S. and {Bosnjak}, Z. and
diff --git a/contact.html b/contact.html
index def5b29..575d1b3 100644
--- a/contact.html
+++ b/contact.html
@@ -1,9 +1,17 @@
 <!DOCTYPE html>
 <html>
 
+<style type="text/css" media="screen">
+    h2[id]::before {
+        display: block; 
+        content: " "; 
+        margin-top: -125px; 
+        height: 125px; 
+    }
+</style>
 
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -14,9 +22,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/contribute.html b/contribute.html
index ed7c47d..969c6da 100644
--- a/contribute.html
+++ b/contribute.html
@@ -1,8 +1,17 @@
 <!DOCTYPE html>
 <html>
 
+<style type="text/css" media="screen">
+    h2[id]::before {
+        display: block; 
+        content: " "; 
+        margin-top: -125px; 
+        height: 125px; 
+    }
+</style>
+
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -13,9 +22,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/cta.html b/cta.html
index 676f127..f0fa60d 100644
--- a/cta.html
+++ b/cta.html
@@ -12,7 +12,7 @@
 
 
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -23,8 +23,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/index.html b/index.html
index 2f7900b..6aa56f3 100644
--- a/index.html
+++ b/index.html
@@ -1,8 +1,17 @@
 <!DOCTYPE html>
 <html>
 
+<style type="text/css" media="screen">
+    h2[id]::before {
+        display: block; 
+        content: " "; 
+        margin-top: -125px; 
+        height: 125px; 
+    }
+</style>
+
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -13,8 +22,23 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
+
     <script defer data-domain="gammapy.org" src="https://plausible.io/js/script.js"></script>
 
     <meta charset="utf-8">
diff --git a/news.html b/news.html
index 3fcc58d..c92b4d6 100644
--- a/news.html
+++ b/news.html
@@ -12,7 +12,7 @@
 
 
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -23,9 +23,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
diff --git a/team.html b/team.html
index 493cd41..65a13e9 100644
--- a/team.html
+++ b/team.html
@@ -11,7 +11,7 @@
 </style>
 
 <head>
-    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <!-- Global site tag (gtag.js) - Google Analytics
     <script async src="https://www.googletagmanager.com/gtag/js?id=UA-110956727-1"></script>
     <script>
         window.dataLayer = window.dataLayer || [];
@@ -22,8 +22,22 @@
 
         gtag('js', new Date());
         gtag('config', 'UA-110956727-1');
-
+    </script> -->
+    <!-- Matomo -->
+    <script>
+      var _paq = window._paq = window._paq || [];
+      /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+      _paq.push(['trackPageView']);
+      _paq.push(['enableLinkTracking']);
+      (function() {
+        var u="https://apcstatview.in2p3.fr/";
+        _paq.push(['setTrackerUrl', u+'matomo.php']);
+        _paq.push(['setSiteId', '2']);
+        var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+        g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s);
+      })();
     </script>
+    <!-- End Matomo Code -->
 
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
