What is search engine: and how does it work

What is search engine: and how does it work

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Hello after seeing what is Search engine optimization , it's time to know how search engines work.

search engine

Search engine definition

A search engine can be defined as a program that searches documents, or web pages, found on the internet by specific keywords, which the searcher enters through one of the known search engines, whether using a computer or mobile phone.

The search engine then shows the results in which the keywords were found, or the subject of the search, and the search engine can be defined as a general application that can be used with ease by internet users.

Without the need to have an account on the search engine used, the search on the internet search engine takes about milliseconds or depending on the speed of the internet at the person used.


Types of search engines.

After the definition search engine will be identified the different types of search engines on the internet, which differ by their types according to the target group, which use them and benefit from their services and have access to them and search.

Among the most prominent types of internet search engines are the following:

  1. Web search engines.
  2. Local search engines.
  3. Metasearch engines.
  4. Blogs search engine.


How search engines work

 In this article, we will provide you with how search engines find web pages and what to do with them, and how to decide which results to display. 

When you use the search engine to find a cafe near you, you may wonder how the search engine scans the entire internet so quickly, choosing the results you see on the page. 

Each search engine uses its own software, but all of them are somewhat similar in their mechanism of action, which can be shortened in three stages::

  • The first stage is called crawling, where the engines scan all the content they contain and are allowed to browse.
  •  The second stage is indexing and consists in classifying each piece of content into categories.
  •  The third and final stage is ranking, where search engines decide which content is more useful and relevant to researchers. 

Search engines crawl the web to discover content such as web pages, images, videos, etc., and every search engine uses tracking software such as Google pad to be able to enter pages.

 These bots move from page to Page by following links to other pages, these programs never stop browsing, their only purpose is to visit the pages again and again in search of new links, new content to include in the index.


What is indexing

 Indexing is a huge list of all the web pages and content that the tracking software has found, and the search engine uses indexing as a source of information displayed on the search results pages, but not everything that the tracking software finds, is placed in the search engine index.

 For example, search engines may find duplicates of the same content on different websites Well imagine you're not looking for a coffee shop but a coffee machine, you might notice, for example, that a well-known coffee machine will dock with the same description, word for word, on many retail websites.

 The source of this description may be the manufacturer, but the search engine has to decide which version to keep in the index, There is no need to save thousands of repeated results and add each page alone.

 So if you have a website that sells coffee machines, you might be better off adding your own description about your site, that's all about crawling and indexing. 


 Search engine ranking

When you type a word or sentence in a search engine, the search engine compares it in the index, to search for results corresponding to it.

say for example that the search engine found 239 matching results, here comes the last part of the search engine's task, which is ranking. 

The ranking mechanism is the secret recipe that each search engine is unique to the other. There are several ways that search engines use to rank purely results, such as:

  •  Words included in the page.
  •  And the number of other sites associated with them.
  •  And the novelty of the content.

 But the equation that is used to determine the ranking does not matter, the goal remains one and that is to try to get the user to the content he is looking for.

Let's say you've read about an Australian style cappuccino called flat white, and you want to try it, if you're looking for the word coffee, flat white near you will show you search engine results, stores near you that sell this type of coffee.

This is because the query you entered involved identifying your location, and the search engine could even show you a map to help you find those stores.


So what did we learn

 Search engines continuously scan the internet to find, organize, and display the most relevant results for searchers. Understanding this process, will help you make your website better.

What are the most popular search engines.

There are a large number of search engines in the world, but few of them are very popular, and some believe that the search engine Google، is the only engine that exists and this is not true.

There are more than 10 other search engines that are widely known and widespread in the world, such as:

  1. Google
  2. Bing 
  3. Yahoo 
  4. Ask 
  5. AOL
  6. Baidu 
  7. Wolframalpha
  8. DuckDuckGo
  9. Archive.org
  10. Yandex
And all these different engines, will provide you the desired results with high efficiency and great speed, so you can rely on your Google search engine, and try any of the previous engines and you will get amazing results and very fast.

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