diff --git a/index.html b/index.html
index 678bd90..331f814 100644
--- a/index.html
+++ b/index.html
@@ -19,6 +19,7 @@
   <li>Contact: security@verdigado.com</li>
   <li><a href="policy.txt">Security and Vulnerability Reporting Policy</a></li>
   <li><a href="acknowledgements.html">Acknowledgements for reported vulnerabilities</a></li>
+  <li><a href="https://securitytxt.org">All our web services serve a security.txt file</a></li>
   <li><a href="https://cert.netzbegruenung.de">Netzbegruenung CERT</a></li>
 </div>
 </body>