How Does Google Search Work?

How Does Google Search Work?

Curious how does google search works?

If you are new in the online world then you will be curious about the working of google and want to understand – How does google show results? You search anything and google shows you results in secs and that is related to your query.

Google is a fully automated search engine that uses software or algorithm known as “web crawlers” that explore the entire web on a regular basis to find websites to add to google’s index system. In fact, the vast majority of websites listed in google results aren’t manually submitted for inclusion but are found and added automatically when google’s web crawlers crawl the web.

Now you are thinking, What is a Web Crawler?


Web Crawler

A Web crawler sometimes called a spider or spider bot and often shortened to a crawler, is an Internet bot that systematically browses the World Wide Web, typically operated by search engines for the purpose of Web indexing. Wikipedia




How Does Google Search Work?


Google Search works in essentially three stages:



#1 Crawling:


Image Source: MOZ


Google searches the entire web with automated programs called crawlers, always looking for pages that are new or updated. Google stores those page URLs in a big list (database) to look at later. Google finds pages by many different methods, but the main method is following links from pages that we already know about.


#2 Indexing


Google Indexing


Google visits the pages that it has learned about by crawling, and tries to analyze what each page is about. Google analyzes the content, images, and video files on the page, trying to understand what the page is about. This information is stored in the Google index, a huge database that is stored on many computers.


#3 Serving Search Results:


When a user performs a Google search, Google tries to determine the highest quality results. The “best” results have many factors, including things such as the user’s location, language, device (desktop or phone), and previous queries. For example, searching for “Best Hospitals For Treatment” would show different answers to a user in India than it would to a user in the USA. Google doesn’t accept payment to rank pages higher, and ranking is done algorithmically.

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Source: Google Search Central