Test #1 
(frame-trapping)

Some browsers are modified so as to always show ads (or other information) from a vendor's site; and some sites grab part of your browser window and keep it for themselves.

By design, this is a very simple page that will let you see if your browser is displaying information NOT from this web site. You should just see a plain white page with three paragraphs of plain text.

Do you see just a plain white page that fills your entire browser window, with just three paragraphs of text, and no ads, banners, or graphics of any kind?   YES    NO