HumHub is a free social network software and framework built to give you the tools to make teamwork easy and successful.
We detected the following sites were using HumHub
If a CMS doesn't have meta tags, it will often have other uniquely identifiable html markup. This can range from unique html comments, ids or classes.
Some content management systems also offer hosting. A website hosted on a CMS developer's domain is a dead giveaway.
Dedicated Content Management System Detection