What is a slug and how important is it for SEO?

What is slug

The URL (Uniform Resource Locator) is a unique and specific address that is assigned to each of the resources available on the Internet. That is, to each web page. URLs are the internet’s way of communicating with our browsers, since these addresses are the ones that indicate where web pages can be located and visited by users.

The “slug” is the final part of a URL and serves to indicate to search engines and users what content they will find within the web page.

A “slug” is the end part of a URL. A “slug” is anything after the last backslash. For example, in the case of this article the slug would be:


Slugs are important for SEO as it is the part of the URL that contains the keywords. A good slug is designed to improve the indexing and positioning of the content in Google (as it allows the search engine bots to better understand your content), but also to facilitate the user experience, as it must contain the right keywords, telling the end user what content they will find on that web page.

A common problem with slugs is the lack of optimization. Although it happens less and less, many websites leave their slugs full of numbers, letters and symbols. This makes them look unreliable, as users have become accustomed to being able to read the full URL to know what they will find.

Poorly optimized URLs not only generate mistrust in the user, but also confuse search engines, which might have problems to correctly position a page web. A “slug” full of numbers can be a problem when indexing content, as Google bots (or any search engine) may not understand what search intent the number “85279” fulfills, so the page may end up indexed for a search that is not the correct one.

When setting up a “slug” it is important, first of all, to have a clear and concise domain name. It is also a good practice to to use subdomains or categoriesfor example, “/blog/” to indicate that this content is inside the blog.

Finally, it is very important to always include the correct keywords in the “slug”. In this way, we are not only indicating to search engines where they have to index our website, but we are also explaining to end users what they will find on it.

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