Quite simply, the person in charge of the web site. In those days, it was likely to be the person who wrote the HTML, wrote the content and set up the web serve

Quite simply, the person in charge of the web site. In those days, it was likely to be the person who wrote the HTML, wrote the content and set up the web server. There are still quite a lot of them about in smaller companies - they keep Wordpress patched, post news stories, update pages etc.