Hijacking traffic with domains implies the registration of a domain name in order to gain traffic coming from type-in or mispelling an established brand or website. Many domain names such as city names, generic things and in certain cases famous people can be used by anybody, as they are "collective goods". Also, many people do not know the exact spelling of a product or a service or the precise extension of a website, which leaves room to millions of domain names that can be registered without infringing a trademark. Thanks to direct navigation, those domains receive unfinite traffic, provided that the hijacked website or name continues to exist.