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Web Bugs
are small invisible graphic
added to web page, email message
or other web-aware document to get statistics on who is looking at them...
"A much more sinister use for web bugs is hiding them within email
messages. This technique allows spammers to validate that your email
address is real and working."
A web bug is a small, usually invisible, graphic added to a web page, email message or other web-aware document.
These graphic images are used by companies to get statistics on who is looking at documents.
These bugs are invisible because they are
generally a 1 by 1 pixel graphic image.
Thus they load fast and cannot be seen
(unless they are a different color than the page on which they reside).
An example of a web bug:
<img src="http://www.commission-junction.com/banners/
tracker.exe?AID=14658&PID=259294&banner=0.gif"
height=1 width=1 border=0> |
This kind of thing is very common to affiliate programs on the internet, as this allows text links to be tracked.
This is important to affiliate programs, because they want to know the ratio of impressions to clicks (this helps determine the effectiveness of an advertisement).
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