How to remove web sites from tracking
I have 2 websites that I have been trying to remove from tracking my activity on my MacBook. I submitted this question before, and the suggestions to remove do not work. I have been clicking on the Safari link on the top left, click on preference, click remove, click clear history, then the same 2 websites reappear. It was suggested that I have some other download that is preventing me from removing, I have none. Any help that someone can suggest would be greatly appreciated by me. Thanks Very Very Much.
MacBook Pro (15-inch Late 2011), macOS Sierra (10.12.4)