diff --git a/build/doxygen/doxygen_footer.html b/build/doxygen/doxygen_footer.html
index a6d5bdfb293..8ffdc5341fe 100644
--- a/build/doxygen/doxygen_footer.html
+++ b/build/doxygen/doxygen_footer.html
@@ -3,42 +3,27 @@ File added into doxygen generated documentation
 -->
 
 
-<!-- Google analytics -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-9049390-16', 'auto');
-  ga('send', 'pageview');
-
-</script>
-<!-- End google analytics -->
-
 
 <hr class="footer" />
-<address class="footer"><small>Generated on $datetime
-for <a href="https://www.dolibarr.org">$projectname</a> by Doxygen $doxygenversion </small></address>
+<address class="footer"><small>Generated on $datetime for <a href="https://www.dolibarr.org">$projectname</a> by Doxygen $doxygenversion </small></address>
 
 
-<!--  Google AdSense -->
-<div class="center">
-<script type="text/javascript"><!--
-google_ad_client = "pub-1071905880519467";
-/* PUBBANDEAUDOLIBARR */
-google_ad_slot = "1421205532";
-google_ad_width = 468;
-google_ad_height = 60;
-//-->
-</script>
-<script type="text/javascript" src="https://pagead2.googlesyndication.com/pagead/show_ads.js"></script>
-</div>
-<!-- End google adsense -->
 <br>
 
 </div>
 
+
+<!-- Global site tag (gtag.js) - Google Analytics -->
+<script async src="https://www.googletagmanager.com/gtag/js?id=UA-9049390-16"></script>
+<script>
+  window.dataLayer = window.dataLayer || [];
+  function gtag(){dataLayer.push(arguments);}
+  gtag('js', new Date());
+
+  gtag('config', 'UA-9049390-16');
+</script>
+
+
 <!-- Twitter ad collector -->
 <script src="//platform.twitter.com/oct.js" type="text/javascript"></script>
 <script type="text/javascript">twttr.conversion.trackPid('ntm4n', { tw_sale_amount: 0, tw_order_quantity: 0 });</script>