A metasearch engine sends queries to several other search engines and aggregates the search results. It sorts its results based on different criteria, assesses the quality of the results, removes duplicates, and clusters the results. Unlike search engines, metasearch engines do not have their own index for pages. This means they do not have their own database and have to access other search engines’ databases. This process, which is more complex than a simple query in a search engine, influences response time, but in return, offers more precise results.