An engine, system and method for a domain social network that interconnects Internet users with at least domains owned by or of interest to those Internet users, and that may obtain and/or forward obtained dynamic data regarding those domains automatically, such as by web service or email service. The dynamic data may be used to filter and protect content and data of the respective domains, to protect users by identifying low quality web pages or malicious software or pages, to isolate or improve search results regarding the domain, and/or to improve Internet-based transaction flow, such as the creation of advertising.