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Yandex data for leading search engines in Russia. Yandex is probably the biggest search engine few people have ever heard of. The Russian search engine has surpassed Microsoft's Bing in the world's top search engine rankings, according to Search Engine Watch, which got its data from ComScore.
They find the information and sebd it to the search engines, take Google they have spiders so when you click the enter sing it comes up with results. Search Engines. This is basicaly Google, Bing,e.c.t. and it is what you use to search the internet, it gives you all the results.