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Build a Web Crawler

Let’s talk about this popular system design interview question – How to build a web crawler?

Web crawlers are one of the most common used systems nowadays. The most popular example is that Google is using crawlers to collect information from all websites. Besides search engine, news websites need crawlers to aggregate data sources. It seems that whenever you want to aggregate a large amount of information, you may consider using crawlers.
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The post is written by Gainlo - a platform that allows you to have mock interviews with employees from Google, Amazon etc..

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