Nowadays, if people encounter a problem, they will find the answer to their question in the search engine as soon as possible, and according to the many reputable sites that exist on the Internet, they will most likely receive their answers.But the question is how do these sites become available to users? How do search engines measure the credibility of these sites? And other questions that you may have can be about the way that search engines work which we will discuss in the following, but first it is necessary to know what a search engine is?

What is a search engine?

A search engine is a tool that provides the user with the best information among a wide range of it, simply put, it is a tool that is used to make it easier for users to search for their answers, and all sites that contain answers to users' questions appear on a page named search engine results page, which the user selects the one he/she needs to meet their needs.

How do search engines work?

Search engines have three sections, these sections are, crawling, indexing, ranking , which we will discuss in more detail below.

- Crawling:

In this section, search engines on the Internet are looking for a sign of the sites, and they will check every code and URL that they find, in fact, crawling sites is done by search engine robots such as crawlers and spiders, which encounter different types of content.In general, they check web pages to find new codes, and it should be noted that despite the differences in the type of content available on the Internet, which through these codes through which sites can be found.

- Indexing:

 After search engines go through the crawling stage, they implement the indexing stage and analyze all the content they have found, and if the sites are of a good quality with the conditions to be indexed, they will be indexed.Sites do their best to help their site be found and indexed by search engines sooner and more users can use the content, as well as faster indexing prevents the site content from being stolen. 

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