US Patent 11556602 Search device, search application, and search method

The present invention provides a personal-use search engine and a web crawler equipped with a login function. The present invention can construct and provide a search system and a database searchable and manageable by a user including a researcher or the like, by the user using a personal-use web crawler. After login with one-click SNS login function or login with e-mail, the user adds, to a database, sites crawled by a web crawler on a server accessible from a web browser. Accordingly, the user can obtain a satisfying search result from among data that is widely collected regarding a specific topic and can discover new valuable information in the data.