I completed 3 of the 4 tests, there are 2 solutions that stood out. A url wasn't working because it had 2 anchors. I had to modify the code to filter the anchors out. A page was timing out, this was very obscure and I had to rely mostly on my gut feeling on it. After thoroughly examining the code I zeroed in on a success state that didn't look correct. I copied a line that updated the queue for a fail state and it passed the test.