so you thought you were only on one server ?
Fiddler is a tool by Microsoft that works like a proxy between your browser and the internet and it intercepts and logs everything that happens. This is quite interesting to see and not only to find why applications aren't working as they should (or not as fast as they should)
So we went to http://www.demorgen.be and what did we get ?
We didn't only went to demorgen but we also had traffic with or from the following servers
this is quite an innocent example but useful because you now know that if you block these domains, you won't give them any information also as it is nowhere clear how much information they get and keep about you.