🔗 Slug Generator

What is a URL Slug and Why Does It Matter for SEO?

A URL slug is the human-readable endpoint of a web address that identifies a specific page. In the URL https://example.com/blog/how-to-build-a-website, the slug is how-to-build-a-website. Slugs use only lowercase letters, numbers, and hyphens — no spaces, special characters, or capital letters.

URL slugs influence SEO more than most beginners realize. Google's John Mueller has confirmed that keywords in URLs give search engines contextual signals about page content. A 2020 Backlinko study of 11.8 million search results found that URLs containing the target keyword ranked meaningfully higher than equivalent pages with non-descriptive URL patterns. Beyond rankings, descriptive URLs also improve click-through rate — users scanning search results are more likely to click example.com/best-free-tools-2026 than example.com/post?id=1247.

Rules for SEO-Friendly URL Slugs

• Use hyphens, not underscores — Google treats hyphens as word separators. Underscores join words together: free-tools = two words; free_tools = one word "freetools"
• Use lowercase only — URLs are case-sensitive on most servers. Mixed case creates duplicate content risk if both versions are accessible
• Keep it concise — aim for 3–5 words. Shorter slugs rank better and are easier to share
• Include the target keyword — front-load the most important keyword in the slug
• Remove special characters and accents — they create percent-encoded URLs (%20, %C3%A9) that are less readable
• Avoid dates unless necessary — dated slugs (2026-01-15-article) limit long-term usefulness as the content ages

Frequently Asked Questions

What is a URL slug?

A URL slug is the human-readable part of a web address identifying a specific page — in example.com/blog/how-to-build-a-website, the slug is how-to-build-a-website. Slugs use only lowercase letters, numbers, and hyphens — no spaces, uppercase, or special characters.

How does a clean URL slug improve SEO?

Three ways: (1) Keywords in URLs are a confirmed Google ranking signal. (2) Readable URLs have higher click-through rates in search results. (3) Cleaner URLs are shared more on social media, generating backlinks. Backlinko's 11.8M page study found keyword-containing URLs rank meaningfully higher than non-descriptive URL patterns.

Should I include stop words (the, a, and) in URL slugs?

Most SEO practitioners recommend removing stop words for brevity. Google's Gary Illyes confirmed stop words in URLs are largely ignored. However, when removing them creates an ambiguous or confusing slug, keeping them is acceptable. This tool preserves stop words by default so you can manually decide based on context.