What Is a URL Slug?

A URL slug is the readable part of a web address that appears after the domain name. It helps identify a specific page and makes URLs easier for users and search engines to understand.

For example, in the URL:

https://example.com/what-is-a-url-slug

The slug is:

what-is-a-url-slug

These page identifiers are commonly used for blog posts, product pages, landing pages, category pages, and other website content.

Why Are URL Slugs Important?

Clean, descriptive page URLs make links easier to read, share, and understand. They also help organize website content and create a more professional appearance.

Compare the following examples:

Good ExampleLess Helpful Example
how-to-count-wordspage123
remove-line-breaksarticle-98472
best-home-gym-equipmentpost?id=567
title-case-vs-sentence-casepage-12-final-version

The examples on the left immediately communicate what the page is about, while the examples on the right provide little context.

What Makes a Good URL Slug?

A well-structured page address is usually:

  • Short and descriptive
  • Easy to read
  • Relevant to the page content
  • Written in lowercase
  • Separated with hyphens instead of spaces
  • Free from unnecessary characters

The following table summarizes common best practices:

CharacteristicWhy It Helps
ShortEasier to read and share
DescriptiveExplains page content clearly
LowercaseMaintains consistency
Hyphen-separatedImproves readability
Free of special charactersCreates cleaner links

Examples

Here are a few examples of clean and readable page URLs:

  • what-is-a-url-slug
  • title-case-vs-sentence-case
  • how-to-remove-line-breaks
  • word-counter
  • slug-generator

Each example clearly describes the content of the page while remaining concise and easy to understand.

Common Mistakes

Using Excessively Long Addresses

Long URLs can be difficult to read and share.

Example:

how-to-learn-everything-you-need-to-know-about-page-url-structure-for-beginners

Shorter versions are usually easier to manage.

Using Special Characters

Characters such as &, %, #, and ! should generally be removed.

Using Spaces

Spaces are not used in web addresses. Hyphens are the standard separator.

Good:

how-to-count-words

Less ideal:

how to count words

Using Random Numbers

Random numbers and symbols often provide little information about the content of a page.

Create Clean Page URLs Instantly

If you need a quick way to generate clean and readable page URLs, try our Slug Generator. It automatically converts titles and text into URL-friendly slugs by removing unsupported characters, converting text to lowercase, and replacing spaces with hyphens.


FAQs

What Is a URL Slug?

A URL slug is the readable portion of a web address that appears after the domain name and identifies a specific page.

What Does a URL Slug Look Like?

Most consist of lowercase words separated by hyphens.
Example:
my-awesome-blog-post

Why Use a Slug Generator?

A Slug Generator helps create consistent, URL-friendly page addresses without manual formatting. It can save time when publishing blog posts, product pages, landing pages, and other website content.

Should URL Slugs Be Lowercase?

Yes. Most websites use lowercase page URLs to maintain consistency and avoid potential formatting issues.

Should I Use Hyphens or Underscores?

Hyphens are generally preferred because they improve readability and are widely used in website URLs.

Can URL Slugs Contain Numbers?

Yes. Numbers can be included when they help describe the page content.

How Do I Create One?

You can create one manually or use a Slug Generator to automatically convert titles and text into a clean, URL-friendly format.