Internet users the world over turn to search engines for information. In fact, billions of items of information are put on line, then modified daily by site managers. Search engines are software programs that sort information according to keywords entered by Internet users during their searches. So how do search engines work on the Internet?
How does a search engine work in general?
A search engine is a software program that lets you search the Internet.
A search engine is powered by robots called crawlers.
When an Internet user performs a search on the Internet, he or she must use a search engine. The surfer will then have to insert keywords so that the search engine can display relevant results related to the requested information. Once the keywords have been entered, the search engine scans all the sites containing the requested information. To find relevant results, the search engine relies on robots to sort and analyze sites compatible with the requested information. To do this, the robots use precise criteria to sort the websites, find the best ones and display the results.
A search engine relies on complex algorithms
A search engine uses complex algorithms to identify the nature of the information or documents published on the Internet, Such as photos, music, videos… Naturally, the aim of a search engine is to provide fast results with content relevant to the queries made by Internet users. The algorithms will therefore both interpret the terms searched for by Internet users, and momentarily display results with valuable content.
Regular algorithm updates
Frequent updating of the search engine’s built-in algorithms is essential to ensure that the results displayed on websites are always the best. With the ever-increasing number of documents put online every day, relevance indicators are also strengthened. Website owners need to keep abreast of new criteria to ensure that their pages are always at the top of the results list.
Quelles sont les étapes suivies par les moteurs de recherche pour afficher les résultats des utilisateurs ?
In order to display the results requested by a user, search engines proceed in two stages: crawling and indexing.
Crawling
This is the first step a search engine takes in a search. Crawling consists of systematically inspecting web pages. The search engine gathers all the information present on the various online platforms. This feat is performed by crawlers or spiders (the robots that help search engines carry out searches). Once the information has been gathered, the crawlers send it to the index so that the search engine can index it.
Indexing
When the engine brain or index receives the information gathered by the crawlers, it moves on to indexing. This stage consists of evaluating all the sites gathered, then organizing and classifying them according to the valuable content of each one. Once this evaluation is complete, the search engine can display results based on the quality of each website’s content.
How does a search engine determine a website’s ranking?
A search engine uses robots to analyze each site associated with a user’s search terms. These robots use precise criteria to assign a quality rating to each site linked to the query. Here are the basic criteria used by these robots to define a site’s ranking in the results displayed.
The popularity rating of the page or website
This is the most important criterion for determining the ranking of a page or website. The crawlers take into account the number of visitors and backlinks pointing to the site. The greater the number of visitors and backlinks, the higher the ranking given by search engines.
Site content and SEO
For search engines to qualify a site as relevant, its content must be valuable and of high quality.. To achieve this, the site manager must write content with relevant keywords so that the search engine ranks it among the best. Today, most marketers opt for SEO, or natural search engine optimization, to optimize their site’s content and guarantee a higher ranking in the results displayed. The crawlers will analyze the keywords according to the requested query and rank the sites with optimized, quality content.
Organizing content on the website
This is a criterion that Google, like other search engines, takes into account in order to identify pages likely to satisfy users. Site owners must therefore organize their content, such as titles, images, videos, external links… Search engines evaluate site organization to ensure that the page displayed adapts to all device screens, and that the result provides the best ranking of sites with search-related content. This criterion contributes to offering users results with relevant content and a quality experience.
Which are the world’s most popular search engines?
There are many different search engines used by Internet users to search the Web. Here are some examples of the most popular search engines worldwide:
- The Google search engine: Google is the search engine giant that dominates all devices with Internet access;
- Bing : Bing is the search engine second only to Google. It’s software developed by Microsoft to challenge the world’s biggest search engine;
- Yahoo : it’s a search engine whose results are influenced by Google and Bing. Yahoo has also been Firefox’s default search engine since 2014 ;
- Qwant: This search engine software guarantees the security of users’ personal data. It offers a page containing results arranged in a vertical menu according to the category of the site: news, images, shopping… ;
- Yandex : a search engine known for operating the largest search engine in Russia, with a market share of around 65% in the country;
- Ecosia: Ecosia is an ecological search engine designed to reduce the energy consumption associated with a search. Nevertheless, the results displayed by Ecosia are provided by Bing and Yahoo!
- Lilo : the software uses the money raised for environmental causes such as solidarity or social projects.
These programs are available worldwide, but some are specifically designed for particular browsers, such as Microsoft and Bing.
A search engine works hard to deliver quality, relevant results to users. Content editors will need to keep a close eye on search engine ranking criteria in order to secure a better place among the results displayed.
