When we want to access the Internet, we use a very simple program called “navigator”, which has what is necessary to be able to move around a small part of the Internet performing searches based on our interests. For this to work, it is necessary that we access a search engine that will be the one that knows the web pages that you share, that is, proceed to crawl websites with the goal of offering results that are as satisfactory as possible.
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What is a search engine or search engine?
A search engine is basically a home page that we can access using a browser.
This page or search engine has a simple appearance and operation, and is focused on helping the user navigate, offering the possibility of finding all types of information based on the words they have used in their search.
There are many search engines o search engines, being the main and most used in order of preference:
- Google.
- Bing.
- Yahoo.
- baidu.
- yandex.
- ask
- Duckucko
- naver.
- AOLSearch.
How a search engine works, from crawling websites to delivering results
The operation of the search engine is simple to explain, although in order to obtain results, behind it there is a very complex process based on technologies that are developed with the aim of improving more and more over time.
These are the three basic principles of operation of a search engine:
Crawl websites for indexing
The process of crawling websites is what allows the search engine to obtain the necessary information from each page to compile it and thus determine when the user may be interested in it.
To achieve this, use some Software which are known as "Robots","web crawlers" or "crawler robots”, which are responsible for searching for content on all pages of all websites.
Once they reach a page, they observe the changes that have occurred since the last visit, so that they obtain all the necessary information that they organize clearly taking into account the keywords of each article.
These words become part of the search engine index, so that when we perform a search, we will basically be resorting to said index.
It should be noted that the frequency with which robots visit a specific page will depend on two main factors: the interest and reputation of the page, and of course also the frequency with which it regularly introduces new content.
Interpret the user's search
We said that the search engine or search engine establishes an index based on the information it receives from the robots, so that when we perform a search, what it does is try to find those articles that contain all the keywords that we have used in it. , thus getting closer to what we really need.
Once you have the possible outcomes, how do you decide which ones should come before and which ones should come after?
Deliver organized results
You may have noticed that when a search engine offers you the results, it shows several pages through which we can move.
However, in most cases it is rare that we go beyond the first, which means that the first results are the ones that are most likely to be visited compared to the later ones.
It must be taken into account that there are many pages that have the same keywords that we used in the search, which means that there may be millions of indexed articles with oneself main word or key and even in combination with the same secondary keywords.
Their organization will also refer to the data obtained by the crawlers, so that more relevance will be given (will be placed first) to the article that presents a better result, more interest on the part of the public, and there is greater accuracy with the search. , etc.
That is, the guidelines are established that will determine whether a page appears first or last, thus ensuring that the user has a better chance of finding what they were really looking for in the shortest possible time and with the best results.
This is basically the entire procedure that allows search engines to work, starting with the process of crawling websites using the robot technology, to then be able to interpret what the user really needs, ending with the sample in a fraction of a second of the most approximate results organized according to the importance that the robots have given to each website.
Industrial Engineering student and lover of writing and technology, for several years I have participated in various pages with the aim of always keeping myself informed of the latest trends and contributing my grain of sand in this immense dissemination network that we know as the Internet.
