One of the most commonly asked questions asked in the marketplace is: “How does Google Work?”
Google runs on a distributed network of thousands of low-cost computers and can carry out very fast parallel processing. Parallel processing allows an almost unlimited number of calculations to be performed simultaneously.
Google has three ways in which it decides who you are and whether you’re worth knowing!
The Googlebot – a web crawler that finds and fetches web pages.
The Indexer that sorts every word on every page and stores the resulting index of words in a humungous database.
The Query Processor, which compares your search query to the index and recommends the documents that it considers most relevant.
Notice that Google recommends documents, not Domains. You may have a Domain name that bears little similarity to the pages it contains, but the page may well get ranked highly if the content is especially relevant to the query.