The paper considers the technology of finding Internet sources of historical information, taking into account their potential as information fixators of historical events, surveillance and retrospective analysis of events. It touches upon the issue of reliability of the information distributed, its factual and documentary grounds in conditions of information confrontation. It provides the method of search and identification of Internet sources about historical facts and conditions, which affect the truthfulness of a witness knowledge of historical events or the author of Internet sources. In addition, based on the developed method and its algorithms of search and identification of Internet information sources, it is possible to recognize confrontation and information-psychological influence of the social environment of the Internet.