Yes, a bonus would be more context, but already this can show stuff you know you don't want. If you see doubleclick.net for instance you know it will be ad-ridden disasters, or whatever.

With just the domain, you can search the code repo and see exactly where it's calling github.com to see what exactly it's trying to reach on github. So it gives you an easy place to track down what's going on. An extra bonus would be clicking on github.com and it would link to the line in the file that makes the github.com call.

Clearly they aren't done covering all the bases, but I think this is a great start! Way more than I expected to be honest.