How a crawler-based search engine works – the basics.
If you take a second to wonder how search engines really work, you’ve already taken four times longer then it takes Google to answer a search query. That’s right, it takes search engines roughly a quarter of a second to retrieve, rank and return a list of websites to you that are the most relevant to your search. That’s pretty impressive, even more impressive when you consider the billions and billions of pages that exist on the Web. You may be really curious about how it all works. You’re curious not only because they deliver such impressive results, but because as...
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