Posted On 15 Jan 2022

Question: How does Google search work?

Answer: Google gathers data from a variety of sources, including pages published on the Internet, user-submitted material, such as your Google Maps user contributions and business profile listings, & public databases
To create rankings of websites, Google employs three main steps: Crawling, Indexing, & Ranking.

Crawling: The first step Google takes is to discover what pages are available on the Internet. Because there is no one repository for all websites, Google must continually search for new ones and add them to its database. Some pages are well-known because Google has visited them previously. When Google follows links between known pages and new pages, it discovers more pages. Other pages are found when a website owner uploads a list of pages for Google to crawl (a sitemap). To determine where the page should show in Search results, Google renders it and evaluates both the text and non-text information, as well as the overall visual arrangement.

Indexing: Google tries to figure out what a page is about when it is discovered. Indexing is the term for this procedure. Google examines the website’s text, classifies pictures and video assets included on the page, and attempts to comprehend the page in general. This data is saved in the Google index—a massive database spread over several server clusters.

Ranking: When a user inputs a query, Google searches its index for the most appropriate response depending on a variety of parameters. By examining elements like the user’s location, language, and device, Google aims to find the highest quality replies and factor in other aspects that will deliver the greatest user experience and most relevant answer (desktop or phone). A user in Paris, for example, might get different results than a person in Hong Kong while looking for “bicycle repair businesses.” Google does not take cash in exchange for higher rankings, and all ranking is done algorithmically.