Search engine scraping: Difference between revisions

Revision as of 13:32, 14 July 2024

Revision as of 13:52, 14 July 2024

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== Methods of scraping ==

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To scrape a search engine successfully, the two major factors are time and amount.

The more keywords a user needs to scrape and the smaller the time for the job, the more difficult scraping will be and the more developed a scraping script or tool needs to be.

Scraping scripts need to overcome a few technical challenges:{{cn|date=July 2024}}

* Utilizing IP rotation with proxies. These proxies should be exclusive (unshared) and not flagged on any blacklists.

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* Correct handling of URL parameters, cookies as well as HTTP headers to emulate a user with a typical browser

*HTML [[Document Object Model|DOM]] parsing (extracting URLs, descriptions, ranking position, sitelinks and other relevant data from the HTML code)

* Error handling, automated reaction on captcha or block pages and other unusual responses{{cn|date=July 2024}}

== Programming languages ==

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When developing a scraper for a search engine, almost any programming language can be used. Although, depending on performance requirements, some languages will be favorable.