Crawlers

What are Crawlers?

The Crawlers, also known as spiders web, are the crawlers sent by search engines to see what's new all over the internet. They are also known as indexers or indexers because of their function. These programs are responsible for analyzing the entire Internet to detect new websites or updates on existing ones and make them appear on the SERPs.

Their behavior follows this pattern: first, they enter a pre-established list of addresses to start visiting subdirectories and reading the links within each and every one of them. When they finish, they add all the results to that previous list so that, the next time, they can directly access all of them and keep adding more and more. Generally, it is a sequential and iterative procedure that little by little increases the indexes of Google and company based on continuous visits.

They do an essential job for users to find the most up-to-date results when searching on the Internet. Their work is essential to keep information up to date on the network, as well as to detect possible broken links or obsolete that could cause problems.

Crawlers are responsible for the appearance of new websites in search engines. The current detection mechanisms would be meaningless were it not for the work of these Google software and the rest of the search websites.

What are Crawlers for?

Crawlers serve to detect each new page that is born, register it and index it so that it appears in search engines that users use. Their work is something that, at the same time, determines the position in which they must appear based on criteria such as the quality of the content they have, the usability and both incoming and outgoing links; they are simply based on the lines dictated by SEO.

They can also be used to detect the status of a website based on how its links are, as well as for other personalized tasks based on what is dictated by its code.

Examples of Crawlers

The clearest examples of crawlers that we can find are those of Google. The search engine par excellence of the entire Internet has the most advanced and important spiders that there may be, since they are in charge of indexing in the most visited directory anywhere.

We can throw in other names, such as Heritrix or Scrapy, which are also well-known crawlers within the web environment.

More information on Crawlers

If you want to know more about how crawlers work, their influence on positioning and their importance, you can take a look at the content that we link below. The following information can be of great benefit to you when opening a web page in the future.