A slug is the human-readable part of a URL that identifies a page. In 'example.com/blog/css-gradient-guide/', the slug is 'css-gradient-guide'. Good slugs are short, descriptive, and include target keywords.

Should I use hyphens or underscores in URLs?

Hyphens. Google treats hyphens as word separators (css-gradient = two words) but treats underscores as joiners (css_gradient = one word). Hyphens are the universal standard.

Can I change a URL slug after publishing?

You can, but always set up a 301 redirect from the old URL to the new one. Without a redirect, you lose all search ranking and inbound links associated with the original URL.

How to Generate SEO-Friendly URL Slugs

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