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How search engine optimization works Search engines have two major functions – crawling & building an index, and providing answers by calculating relevancy & serving results. Crawling & Building: Search engines are answer machines. When a person looks for something...

How search engine optimization works Search engines have two major functions – crawling & building an index, and providing answers by calculating relevancy & serving results. Crawling & Building: Search engines are answer machines. When a person looks for something...