According to the Internet Advertising Bureau, the following is the standard Internet Advertising sizes. It is very likely that NIS blocks all of these ad sizes (and probably more).
It’s a good idea to avoid these graphic sizes in your website design. Also, at least for now, you can avoid getting these images blocked by NIS if you omit the width and height attributes from your img tags.
Rectangles and Pop-Ups
- 300 x 250 IMU – (Medium Rectangle)
- 250 x 250 IMU – (Square Pop-Up)
- 240 x 400 IMU – (Vertical Rectangle)
- 336 x 280 IMU – (Large Rectangle)
- 180 x 150 IMU – (Rectangle)
Banners and Buttons
- 468 x 60 IMU – (Full Banner)
- 234 x 60 IMU – (Half Banner)
- 88 x 31 IMU – (Micro Bar)
- 120 x 90 IMU – (Button 1)
- 120 x 60 IMU – (Button 2)
- 120 x 240 IMU – (Vertical Banner)
- 125 x 125 IMU – (Square Button)
- 728 x 90 IMU – (Leaderboard)
Skyscrapers
- 160 x 600 IMU – (Wide Skyscraper)
- 120 x 600 IMU – (Skyscraper)
- 300 x 600 IMU – (Half Page Ad)
Source:
IAB Internet Ad Unit Guidelines
{ 3 comments… read them below or add one }
The very first Global default rule of Norton Adblocking “block #clink” is the rule that I believe controls the blocking by image size. Norton Internet Security is one of the most powerful apps out there. It’s a shame that the defaults are so heavy handed and that documentation and support site are so poor.
Block every ad which confirms to this size.
http://www.mozilla.org/support/firefox/adblock
The problem with this is that it also blocks some of the most excellent parodies I’ve ever seen.