What is an SEO-friendly URL?

An SEO-friendly URL is a page address that:

1. Is clear to a human - without a chaos of symbols and numbers (site.com/how-to-build-a-url, not site.com/page?id=1234).
2. Contains keywords - reflects the essence of the content, which helps search engines understand what the page is about.
3. Is short and clean - without extra parameters, underscores, stop words.

Example:

• Bad: site.com/article?id=579
• Good: site.com/url-optimization

Such a URL is easier to remember, easier to copy, and it ranks better in search.