URLpoisoning is URL indexing to study the user behavior of website visitors. URL poisoning is also known as location poisoning. URL poisoning is about determining which web pages of a website a visitor visits.
This information can be used to identify user behavior and draw conclusions about user navigation and website design. In URL poisoning, an identification number is appended to the user's Internet address when the first web page is called up. This identifier can be used to track the sequence of web pages called up, the time the user spends on each web page and the actions performed. From this information, the website operator can identify the interest in certain product groups and promote them more intensively.
The method of URL poisoning is not entirely uncontroversial.