Combining anti-typosquatting techniques

Typosquatting constitutes a widely used malpractice of domain exploitation that leverages users’ typographical errors when entering URLs. Different techniques have been devised to mitigate this threat and some tools have been developed. However, currently there are almost no tools available to web users. We propose a comprehensive open-source software solution which combines state-of-the-art typosquatting detection techniques and it is freely available as a dedicated extension for the web browser Chrome, named TypoAlert. TypoAlert is designed to automatically detect in real-time when a user visits a typosquatted domain and alerts the user accordingly. An assessment done through the analysis of a significant number of domains shows the effectiveness of the approach.