How Google Search Works (in 3 minutes) | What is Google Search Engine | InterviewDOT

Google Search Engine Goal ?
Google makes sure to offer you search results in a range of rich formats to help you find the information you’re looking for quickly.

What is Google Indexing ?
Google tries to understand what the page is about. This process is called indexing. Google analyzes the content of the page, catalogs images and video files embedded on the page, and otherwise tries to understand the page. This information is stored in the Google index, a huge database stored in many, many (many!) computers.

Serving (and ranking) ?
When a user types a query, Google tries to find the most relevant answer from its index based on many factors. Google tries to determine the highest quality answers, and factor in other considerations that will provide the best user experience and most appropriate answer, by considering things such as the user's location, language, and device (desktop or phone).

Google's search engine is a powerful tool.It helps to find the information you need when you browse the Web.Google uses a special algorithm to generate search results.

Google is using web crawlers to organize information from webpages.

Crawling, Indexing, Searching Algorithm

Google ranking systems sort through billions of webpages in the Search index to give you useful and relevant results in a fraction of a second.

Google uses a special algorithm to generate search results.

Google uses automated programs called spiders or crawlers [Googlebot].

What sets Google apart is how it ranks search results, which in turn determines the order Google displays results on its search engine results page (SERP). Google uses a trademarked algorithm called PageRank, which assigns each Web page a relevancy score.

A Web page's PageRank depends on a few factors:
The frequency and location of keywords within the Web page.
How long the Web page has existed.
The number of other Web pages that link to the page in question.
Rich and relevant content.

Google holds hundreds of billions of web pages and is more than 100,000,000gb in size, so there’s plenty to read through.