diff --git a/.env.development b/.env.development
index 47e27e3..f4e8b89 100644
--- a/.env.development
+++ b/.env.development
@@ -33,3 +33,14 @@ GATSBY_PAGE_TITLE="Common Gateway"
# NL-Design Theme
GATSBY_NL_DESIGN_THEME_CLASSNAME=conduction-theme
+
+# Security.txt https://www.gatsbyjs.com/plugins/gatsby-plugin-security-txt/
+GATSBY_SECURITY_TXT_INTRO=Information related to reporting security vulnerabilities of this site.
+GATSBY_SECURITY_TXT_CONTACT=mailto:info@conduction.nl
+GATSBY_SECURITY_TXT_EXPIRES=2024-12-31T23:00:00.000Z
+GATSBY_SECURITY_TXT_ENCRYPTION=
+GATSBY_SECURITY_TXT_ACKNOWLEDGEMENTS=
+GATSBY_SECURITY_TXT_LANGUAGES=nl, en
+GATSBY_SECURITY_TXT_CANONICAL=
+GATSBY_SECURITY_TXT_POLICY=
+GATSBY_SECURITY_TXT_HIRING=
diff --git a/.well-known/security.txt b/.well-known/security.txt
index 0ea12e2..4890493 100644
--- a/.well-known/security.txt
+++ b/.well-known/security.txt
@@ -1,10 +1,22 @@
-# Information related to reporting security vulnerabilities of this site.
-
-# How to communicate about security issues.
-Contact: mailto:info@conduction.nl
-
-# Date and time after which this data is considered stale
-Expires: 2024-12-31T23:00:00.000Z
-
-# Preferred languages for communication.
-Preferred-Languages: nl, en
+# Information related to reporting security vulnerabilities of this site.
+
+# How to communicate about security issues.
+Contact: mailto:info@conduction.nl
+
+# Date and time after which this data is considered stale
+Expires: 2024-12-31T23:00:00.000Z
+
+# Encryption
+
+# Acknowledgements
+
+# Preferred languages for communication.
+Preferred-Languages: nl, en
+
+# Canonical
+
+# Policy
+
+# Hiring
+
+# Please see https://securitytxt.org/ for details of the specification of this file.
diff --git a/404.html b/404.html
index 90c413d..1a26fb6 100644
--- a/404.html
+++ b/404.html
@@ -1,4 +1,4 @@
-