You’ve got a Drupal 7 website. You’re aware that support for Drupal 7 will end in November 2021. So, what do you need to plan for? Flip-flops or a pair of sturdy walking boots?
Headscape used to offer its own content management system (CMS) to would be clients. It was first developed back in the early noughties when CMSs were ridiculously expensive and crap to use.