3 Essential Steps On How Google Search Engine Works
A global, automated search engine, Google has become a worldwide phenomenon. Web crawlers are a type of software used by Google's search engine. In order to build an index that may be displayed to the user, this program scours the web looking for relevant pages. Google categorizes these sites based on the findings of the inquiry. There are three major steps on how Google search engine works:
- Crawling
- Indexing
- Ranking
1. Crawling
Web crawlers, or "Googlebots," are used by Google to collect data and material from numerous web pages. Google employs this strategy in an effort to find and catalog any product associated with any company. The web crawler collects data by following links from one website to the next. Each website's contents and landing pages are determined by an algorithm.
Websites are downloaded by these crawlers, which are also known as bots or spiders. Discovered pages are saved in the Google index, a huge database.' Whether a page is known to a search engine, it is regularly checked to see if it has changed. Whenever a change is made, the page is updated to reflect the change.
Mode of working of Web Crawling
The robots.txt file is downloaded by all search engine crawlers prior to beginning a crawl. This file lists the websites that should and should not be crawled, as well as the rules for doing so. It also contains the sitemaps and URLs that the search engine wants the crawler to visit. As a result of this process, web spiders collect more links and URLs to connected additional pages. Users' requests are served up by search engines, which use this method of identifying publicly accessible web pages.
Using a sitemap, a search engine's web crawler is guided through a website's pages while it indexes and crawls material.
2. Indexing
Search engines discover the existence of websites by crawling them. Prior to database storage, crawler data must be categorized and organized. Indexing is the process of categorizing and cataloging web pages based on their content. The search engine does not save all of the page content while indexing. The page's title, description, related keywords, content type, and number of outgoing and incoming links are all stored in this database. There are two types of incoming and outgoing links: those that are arriving from our website and those that are coming from our website.
3. Ranking
To find results for a search query, Google uses information in its database and index to conduct an analysis. Ranking refers to the process of putting relevant search results in a logical order. The device, location, and language of the searcher are just few of the factors taken into account by Google when displaying search results. We can presume that the higher a page ranks, the more relevant it is to the user's search.
