Typosquatting, also called URL hijacking, is a form of cybersquatting which relies on mistakes such as typographical errors made by Internet users when inputting a website address into a web browser. Should a user accidentally enter an incorrect website address, they may be led to an alternative address owned by a cybersquatter.

When a user visits a website, her browser may be instructed to visit other third-party domains without her knowledge. Some of these third-party domains raise security, privacy, and safety concerns. The Strider URL Tracer, available for download, is a tool that reveals these third-party domains and includes a Typo-Patrol feature that generates and scans sites that capitalize on inadvertent URL misspellings, a process known as typo-squatting. The tool also enables parents to block typo-squatting domains that serve adult ads on typos of children's websites. Visit the Microsoft Research website for more information.

Excellent tool.