How search engine works | In this digital world if we want to get information about any terms then we go to the search engines and type that keyword and the search engine shows us thousands of results in a second. Have you ever tried to know that How actually the entire process works? On which basis search engine listed the websites?
Do you use the internet? Well, of course, you do. You are reading my article. You are probably searching with a few keywords over the internet and bumped upon this article. But have you ever thought that how does an internet search works?
Whatever search engine you use like google, yahoo, Bing, etc have you thought that what happens when you type in a few keywords and hit the enter button, and within a fraction of a second you are shown hundred and thousands of results.
So how exactly this search engine works? Search engines like google and Bing have connected almost everything on the internet that they can answer any question, anything that you search and they come back with thousands of results.
Well, we all are aware of the search engine, every person uses it but some of them don’t know how a search engine works. So for that, I have written this article so you can understand and can get information about it. So read this entire article fully.
Well, today we will find it out. So let’s get started.
How search engine works
Before you know how does an internet search works you first know that every time you search on the internet, when you enter the keywords and press the enter you are actually not searching the entire internet. But instead, you are just searching the index which belongs to that particular search engine.
That means whatever the search engine, whatever it is Google, Bing, yahoo whatever you are using, whatever that search engine has found over the internet. Your search is limited to that information only. Let me explain it further.
Well by now you may be wondering what indexing is? Before we know the let me first about the main three components of internet search. And that three components are,
- Crawlers ( web spiders )
- Indexing
- Ranking
Crawling
Crawlers you can say web spiders. Google’s web spiders are also known as Google bots. Now, what these bots are? They are not ordered bots, they are not robots, they are not mechanical robots but they are actually software programs that are written by programmers.
And these software programs are designed to go over the internet. So their basic job is to go over the internet, traverse from one website to another and another, and so on and scan or crawl all these entire websites and fetch information and transfer all that information onto the web servers of this search engine.
Now, what is the information that bots scan? So it is keywords that are used on the websites, internal and external links that are on the websites, other than what is the content of websites such as images, videos, text.
So all this information is picked from the website and gets transferred into the web servers. Now let’s talk about the second main factor of search engines called indexing.
Indexing
Indexes are the database and in that database, bots store the data that they fetched while crawling the website. They fetched the data such as text, images, videos and store it in the database. They listed those websites that contain the keyword that you have searched.
For example, if you search the “Working method of search engine” keyword in the search bar then crawlers find those websites that contain the “working method of search engine” keyword from its database, and in this case, there are thousands of possible results that contain that keyword. Then search engine finds what results are better that give the complete information of that keyword.
How many times does that particular website contain that keyword means is that keyword is appearing in the title of that web page? in the description of that web page? Or in the URL of that web page? If it is then the next step is to list that web page on the search engine results by calculating the Rank of that web page. So now what is Ranking?
Ranking
Every search engine wants that they provide detailed information about searched terms or keywords. So based on the Quality of that web page, How many websites link to that particular web page, and How the quality of that links that points to a particular webpage, the search engine decides the Rank of that web page and listed it on the search results.
Now the process of crawling and indexing is common for all websites. But the process of ranking is not common for all websites. It depends on the quality of the websites.
There are lots of other factors that are present and on the basis of those factors, search engines show us thousands of results. Google uses more than 200 factors to shows the results to the user.
Now we know how the search engine shows us the results but how does it show us the images or videos? If images or videos do not contain keywords then How? What is the process behind that?
Well, Google’s bot is not much capable to read or identifying the images, spiders can not scan the images. So for that, they use Alt Tag as a keyword that the image contains. Every image that is available on the website has an Alt Tag. Information about that image is described Alt Tag, it describes to the spiders what the image is related to. So it is easy to understand by the crawlers or spiders.
The same thing is applied to the videos. What the video is about is described in the title and description of that video. As you see in the youtube video. Well, the working method of the youtube search is different.
Every website owner describes Alt Tag for the image. Otherwise, the search engine can’t index it in the results.
Now you know how the search engine shows images or videos to us.
Conclusion:
Today we have learned how a search engine works? What is the working process of a search engine and How it shows thousands of results?
I hope now you understood. Help other persons by sharing this article so that they can get information about the working process of the search engine as you get.
