Without a list of requirements answering this question is impossible. There might be 1 required (e.g. authN/Z) that for _reasons_ upgrades the level of complexi

Without a list of requirements answering this question is impossible. There might be 1 required (e.g. authN/Z) that for _reasons_ upgrades the level of complexity considerably. That said, the web is complex today because user expectations grew significantly. A website must be compliant with all browsers, mobile ready, save state without users clicking a 'save' button, etc. A CMS might do all that out of the box with boilerplate generic code.