4 Types of Search Engines in Force in 2021

Without the search engines It would be very difficult to navigate the web, since they offer us lists and shortcuts to the many pages on the Internet, using only keywords and avoiding having to learn the URL addresses of each site.

But we can detect some variations and types of search engines due to the way the results are developed. Of course, these must be connected to the internet to offer you answers based on the World Wide Web (WWW).

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What are Search Engines?

They are platforms from where we can search different internet pages. These usually come attached with links to the sites, in addition to previous information such as images, descriptions, among other things.

The most widespread search engines such as Google They use the collection of user browsing data to personalize each response. This is why they analyze your behavior, the most frequent searches and even your habits.

However, there are other search engines like DuckDuckGO o TOR, which prefer to safeguard privacy and protect their users, so they do not collect this type of data nor do they store the cache, being these the most recommended on the market.

Differences between search engines and browsers

Many people tend to confuse a search engine with browsers, both being different in several points. Browsers are the programs or applications that connect to the web to take us to any page, usually with the initial WWW.

Meanwhile, search engines are pages within the Internet, which we have to access from the browser to find more accurate results.

Simply put, browsers connect you to a URL, while search engines provide results and answers. based on keywords.

 4 Most Used Types of Search Engines

As a general rule, there are four types of search engines that we can define depending on how it works. These differ from each other in the way they offer us the results, the amount of data they collect and also the connection of all the links.

1. Hierarchical Search Engines

Also known as spider search engines or indexers, they are those search engines controlled by a system or computer software, which has the task of finding pages and platforms on the World Wide Web to study their link structure and relate them to the main one.

In itself, the hierarchical search engines They use the word typed by the user to find millions of pages that have articles or information related to that word. When accessing those that are related to the content or resolve the search intentions, the pages are downloaded and more links are searched for within all that information.

The procedure continued successively until have a framework or virtual spider web of links and information. Of course, this type of search engine uses advanced rules and algorithms that vary in There and according to the conditions of each company.

The most characteristic of this type of search engines is that they are controlled by bots, Artificial Intelligence and also with the development of the human mind, being one of the most complex systems that we find on the web.

List of spider search engines

• Google.
• AOL.
• Ask Jeeves.
• Teoma.
• Yahoo.

2. Web Directories

Directories are the least used today, even though they were quite popular at the beginning of the search engine era. They were absorbed by Google and similar search engine spiders because the directories results are more accurate.

It should be noted that web directories These are online services that compile a list of links to websites based on multiple categories, although images, videos and related resources are also used.

A link directory is usually very basic, allowing services and platforms to load as quickly as possible. They are completely lacking in information on each site and searches are as accurate as a traditional search engine.

Nowadays, web directories are used internally on websites or databases and contain all the access information to the same page, so that users can find what they are looking for in your articles and content. without resorting to an external search engine.

List of web directories

• About Us.
• DMOZ.
• Yahoo Directory.
• Craigslist.

3. Metasearch engines

La combination of results provided by various search engines, is brought together in something known as Metasearch Engines. These focus on bringing together the proposals of search engines such as Google and Yahoo, offering a combined view.

It can be said that metasearch engines are the search engines that use other search engines and can be a good option for those who wish to obtain a variety of information, based on the algorithms provided by this type of service.

However, for more detailed or precise searches, this type of search engine may not be as precise as expected, since the merging of results may not correctly address the conditions that the searches meet. multi-site syntax chosen in the comparison.

However, metasearch engines can sometimes be customized by choosing the most promising search engines for users, and many of these do not even collect personal information, making them a tentative alternative for many.

List of most popular metasearch engines

• Jooble.
• iBoggie.
• Metacrawler.
• indeed.
• Zapmeta
• Yippy.

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4. Vertical Search Engines

Vertical search engines are sometimes left out of the classification of search engine types, because they are derived from hierarchical search engines. These also work through complex systems of spiders that find links and information, but based solely on a theme.

That is why the vertical search engines They offer much more specific, precise and complete data than a spider. With them we can develop complete topics taking advantage of the largest amount of related information on the Internet.

Considering that bots focus on selecting links and pages that are in line with the niche searched, the search work can be much more efficient and fast compared to a basic engine.

In fact, this means that the information collected is much more recent and up-to-date, allowing vertical search engines to be the preferred ones for those who are dedicated to finding the latest from the different topics available on the web.

List of vertical search engines

• Google Scholar.
• ARCH.
• Scholarships
• University Scholarships
• ThousandPrograms.
• BoardReader.
• Imdb.
• AllMusic.