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variants:
or Web crawler
Definition of web crawler
: a computer program that automatically and systematically searches web pages for certain keywords Each search engine has its own proprietary computation (called an "algorithm") that ranks websites for each keyword or combination of keywords. These algorithms use Web crawlers … that collect data from your website to determine where it ranks with respect to search terms.— Julie Brinton
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Time Traveler for web crawler
The first known use of web crawler was in 1994
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