Force redirect to the www subdomain or without www can be chosen.
Documented on https://www.directadmin.com/features.php?id=2365

Why is coding in Direct Admin not yet sufficient for HSTS and security headers on internet.nl?
I think the coding must be in two steps in order to be secure.

Note: In Plesk identical functionality works correctly.

Eg:
97%: https://internet.nl/site/www.webtech...ons.nl/539788/
100%: https://internet.nl/site/webtechsolutions.nl/539790/