diff --git a/docker/locals.tf b/docker/locals.tf
index ef49019..10ffd80 100644
--- a/docker/locals.tf
+++ b/docker/locals.tf
@@ -1,10 +1,13 @@
 locals {
   traefik_common_labels {
     "traefik.enable"                                   = "true"
+    // HSTS
     "traefik.frontend.headers.SSLTemporaryRedirect"    = "true"
     "traefik.frontend.headers.STSSeconds"              = "2592000"
     "traefik.frontend.headers.STSIncludeSubdomains"    = "false"
+    // X-Powered-By, Server headers
     "traefik.frontend.headers.customResponseHeaders"   = "${var.xpoweredby}"
+    // X-Frame-Options
     "traefik.frontend.headers.customFrameOptionsValue" = "${var.xfo_allow}"
     "traefik.frontend.headers.contentTypeNosniff"      = "true"
     "traefik.frontend.headers.browserXSSFilter"        = "true"