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How Search Engines Work - The Beginners Guide to SEO. Search engines have two major functions - crawling & building an index, and providing answers by calculating relevancy & serving results.

How Search Engines Work - The Beginners Guide to SEO

Imagine the World Wide Web as a network of stops in a big city subway system. Each stop is its own unique document (usually a web page, but sometimes a PDF, JPG or other file). The search engines need a way to “crawl” the entire city and find all the stops along the way, so they use the best path available – links. Crawling and IndexingCrawling and indexing the billions of documents, pages, files, news, videos and media on the world wide web. Term Extractor SEO Tool.

Free SEO Software Tool & Text Browser, Search Engine Optimization Tools - SEO Browser.