Indeed: they serve Google different pages than ordinary visitors. When I set my user agent string to "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google

Indeed: they serve Google different pages than ordinary visitors. When I set my user agent string to "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html http://www.google.com/bot.html) " suddenly forbes.com doesn't object to my adblocker anymore.