How Do Search Engines Work?- 4 Informative Basic Study


A Search engine is a system of software architected to search for information on the internet or the World Wide Web. In general, the search engines present the search results in response to the user’s query. We call them to search engine result pages. Some search engines also maintain real-time information. Here are the few search engines list 2022.

How search engines work in 2020

Such search engines work by running an algorithm on a web crawler. The content on the internet which is not capable of being searched by a surface search engine is called Deep web content.

How Do Search Engines Work?

To come to the point, search engines work by following three steps. Search engines follow these three steps to manage, rank the websites and pages, and provide related and relevant SERPs ( Search Engine Result Pages).

Those 3 Steps are –

  • Web Crawling
  • Indexing
  • Algorithm
  • Search Engine Submission

1. Web Crawling

Web crawling is the medium by which search engines work. They can search for the content published on the world wide web, and web crawling is simply nothing but copying the content on the indexed pages.

It constantly keeps an eye and whether there is any modification or change in the indexed pages published on the World Wide Web. Search engines maintain some programs to do these crawling activities, and we call them Web Crawlers, Web Robots, Web Spiders, etc.

A large amount of information stored on the web pages lies in the deep web or hidden web. We can access these pages by submitting queries to the database. The regular web crawlers or web spiders cannot search for these pages without the links that point to them.

2. Indexing

Indexing is a process of saving the data crawled by the web spiders. This data is stored in the data centers of the search engines. Search engines have large data centers to deposit and save the information crawled by the web spiders. These data centers are maintained in high-secured monitoring and with well-built infrastructure.

This data is again provided to the users against their search request. So Indexing is the process of organizing and maintaining a huge quantity of data. Such indexed pages and information can be searched quickly within no time, causing convenience to the user by giving appropriate information for the users’ query.

In Indexing, the IT tools aggregate and interpret the search engine’s data. Indexing is nothing but streamlining data retrieval, and it is called web indexing. This web indexing helps the searchers and search engines retrieve the relevant information instantly.

3. The Algorithm

A search engine algorithm is a mathematical formula taking a problem as its Input and giving out a solution to the problem as output. It evaluates some possible solutions.

The Algorithm of a search engine uses keywords as its Input and gives out search results as the output or the solution with the help of the database stored with the search engine. The web crawlers recognize the keyword input of the search engine and supply the related and relevant information.

After completing the Indexing procedure, the search engines have a huge quantity of information in their database. The search engines use this database to search for the relevant and required information with the help of the search engine.

The Algorithm plays its role between the user’s query and the supply of the appropriate information to the user by the search engine within no time. The Algorithm plays its role very effectively in fetching the relevant information to the query.

The Algorithm is a very complicated equation that calculates a value for any site we search for about the searched keyword.

4. Search Engine Submission

Search Engine Submission is a complex process, and a webmaster submits this process to submit a website to the search engine. In general, the Web Crawlers search for and spy on the websites and collect and save the collected data with their data centers of the search engines.

The webmasters can submit one web page or submit the whole website using the Sitemap of the website.

Some software programs run by some search engines add links to the web pages indexed with the search engines. This linking method is very useful to get a ranking for the website.

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