Crawler Based Search Engine?
Crawler based search engines are those search engines that use the automated software agents, usually called crawlers, which visit a particular website. They then read the information on the particular site and follow the links, which connect to perform indexing on the linked websites
Human Powered Search Engine
Human powered search engines are websites that have actual people searching for and answering your questions, rather than typical search engines comprised of computerized programs crawling the web to find your answers.
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