If you use Firefox you can actually detect and block
web bugs:
1) Install
greasemonkey and restart browser
2) Goto tools -> new user script
then paste this in there (right after // ==/UserScript==), save it (might wanna retitle the line @name bug detector), then open it with firefox and goto Tools -> install this user script
(function()
{
window.addEventListener("load", function(e)
{
var imgList = document.getElementsByTagName("img");
for (i=0; i < imgList.length; i++)
{
if (imgList[i].width == 1 && imgList[i].height == 1 && imgList[i].src != "")
{
imgList[i].width = "101";
imgList[i].height = "101";
imgList[i].alt = "WeB BuG";
imgList[i].border = "7";
imgList[i].style.borderColor = '#ff0000';
imgList[i].style.backgroundColor = '#00ff00';
}
}
return;
}, false);
})();
I wrote this myself, with a little help from a few other sites :thumbup: (Upon loading a site it gathers a list of all objects tagged "img" that are 1 x 1 pixels in size and that have a url associated with them, then it makes them a lot more visible
based on
this , except my version is better cuz it allows you to use Adblock
This produces a
green box 101 x 101 pixels with a 7 pixel
RED border that marks the bug ... when you right-click -> Propeties it should say "Alternate text: WeB BuG"
3)Use the
Adblock extension to block the image, right-click the green square and Adblock image ... some of the 1x1 images are spacers for formatting purposes ... you should check the page source to make sure, but blocking the image does not affect site layout (usually), so it is safer just to block them
4)Try it out
here (refresh browser if they are not visible) and at
http://www.nytimes.com/ a.k.a web bug central
or
http://www.cnn.com/