As many users reported the host graph.facebook is important to make the service works , so has been removed from the test.

In the last days this tool had of lot of attention , but seems something it's not clear . The test it's not a benchmark tool , and is not a race about who make 100% , it's a reference tool to check if you are blocking any of the host , in this case are used the most important hosts by category and popularity as reference

Oh, and if you get a bad points when you are sure that your blocking system used works , then probably you are on a browser that manage error connection in different ways so the tool will not detect it .