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A Web crawler, sometimes called a spider or spiderbot and often shortened to crawler, is an Internet bot that systematically browses the World Wide Web and that is typically operated by search engines for the purpose of Web indexing (web spidering).
With this type of policy, there is a fixed rule stated from the beginning of the crawl that defines how to assign new URLs to the crawlers. For static assignment, a hashing function can be used to transform URLs (or, even better, complete website names) into a number that corresponds to the index of the corresponding crawling process. [4]
Crawler-based search engines are those that use automated software agents (called crawlers) that visit a Web site, read the information on the actual site, read the site's meta tags and also follow the links that the site connects to performing indexing on all linked Web sites as well. The crawler returns all that information back to a central ...
The crawl frontier contains the logic and policies that a crawler follows when visiting websites. This activity is known as crawling . The policies can include such things as which pages should be visited next, the priorities for each page to be searched, and how often the page is to be visited.
A spider trap (or crawler trap) is a set of web pages that may intentionally or unintentionally be used to cause a web crawler or search bot to make an infinite number of requests or cause a poorly constructed crawler to crash. Web crawlers are also called web spiders, from which the name is derived.
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SHE Media defines SheKnows.com as a site dedicated to "providing women with the practical service they need and the daily inspiration they want to live full, authentic lives." [ 12 ] As the flagship property of SHE Media, SheKnows.com’s editorial and branded content spans topics that include food, family, health, beauty, entertainment, and more.