diff --git a/data/templates/nginx/plain/yunohost_admin.conf b/data/templates/nginx/plain/yunohost_admin.conf
index 51424f289..156d61bd6 100644
--- a/data/templates/nginx/plain/yunohost_admin.conf
+++ b/data/templates/nginx/plain/yunohost_admin.conf
@@ -37,6 +37,9 @@ server {
     # > openssl dhparam -out /etc/ssl/private/dh2048.pem -outform PEM -2 2048
     #ssl_dhparam /etc/ssl/private/dh2048.pem;
     
+    # Follows the Web Security Directives from the Mozilla Dev Lab and the Mozilla Obervatory + Partners
+    # https://wiki.mozilla.org/Security/Guidelines/Web_Security
+    # https://observatory.mozilla.org/ 
     add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload"; 
     add_header 'Referrer-Policy' 'same-origin';
     add_header Content-Security-Policy "upgrade-insecure-requests; object-src 'none'; script-src https: 'unsafe-eval'";