How can you prevent history sniffing by online ad companies?

Answer

jimlynch
Vote Up (18)

Here's an article with some tips.

Browser History Sniffing and Other Tracking Techniques
http://antivirus.about.com/od/securitytips/a/historysniffing.htm

"By default, links change color when you have visited them. Browser history sniffing compares the link colors of links in your history folder to a master list of links (and their default non-visited colors) maintained by the website operator. A color mismatch indicates a particular site has been visited. Clearing your browser history can help prevent browser history sniffing. If clearing and keeping your browser history set to zero isn't an option, you can change how Internet Explorer and Firefox handle visited link colors."

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