It is a good blocker--perhaps just a touch too good. It blocks access to my bank. Would love to be able to permanently tell it to stop messing with my bank, but there seems to lack a menu for that as many of the other apps have. Though I see someone below said it does allow for exclusions--so I guess I'll keep looking for that function on it...Well, found the exclusions, now the site is down due to inclement weather and I'm getting false negatives--I can't win for losing. I change this rating to 5 star because I think this will work very well with that exclusion section.