Compare these URLs:
example.com/post?id=12847
example.com/how-to-make-perfect-coffee
Which tells you more? Slugs—the readable part of URLs—improve both user experience and SEO.
What Is a URL Slug?
A slug is the user-friendly, readable portion of a URL that identifies a specific page. It typically comes from the page title, converted to URL-safe format:
- Title: "How to Make Perfect Coffee at Home"
- Slug: how-to-make-perfect-coffee-at-home
Create slugs with our slug generator.
Why Slugs Matter
SEO Benefits
- Keywords in URL are a ranking factor
- Users more likely to click descriptive URLs
- Search engines display slugs in results
- Helps search engines understand page content
User Experience
- Indicates page content before clicking
- Easier to remember and share
- Looks professional and trustworthy
- Can be typed manually if needed
Sharing
- Readable when shared on social media
- Clear in messaging apps
- Makes sense in emails
Slug Best Practices
Keep It Short
Remove unnecessary words:
- "How to Make the Best Coffee" → best-coffee (better)
- Stop words (a, an, the, to, of) often can be removed
- Aim for 3-5 words when possible
Use Hyphens, Not Underscores
Google treats hyphens as word separators, underscores as joiners:
- coffee-maker (two words to Google)
- coffee_maker (one word to Google)
Lowercase Only
URLs can be case-sensitive on some servers. Lowercase avoids issues:
- example.com/Coffee-Maker ← might cause problems
- example.com/coffee-maker ← safe
Include Target Keywords
Put your primary keyword in the slug:
- Targeting "french press coffee"?
- Slug: french-press-coffee-guide
Avoid Numbers and Dates
Unless essential to the content:
- top-10-tips-2024 ← ages poorly
- essential-tips ← evergreen
Slug Conversion Rules
When converting text to slugs:
- Convert to lowercase
- Replace spaces with hyphens
- Remove special characters
- Replace accented characters (é → e)
- Remove multiple consecutive hyphens
- Trim leading/trailing hyphens
Handling Special Cases
Non-English Characters
Transliterate or remove:
- café → cafe
- über → uber
- 日本語 → (remove or transliterate)
Numbers
Keep when meaningful:
- "5 Tips" → 5-tips (OK if number is key)
- "Version 2.0" → version-2-0
Punctuation
Remove or replace:
- "What's New?" → whats-new
- "Q&A" → q-and-a
Avoiding Slug Conflicts
Each slug must be unique. Handle conflicts by:
- Appending numbers: coffee-guide, coffee-guide-2
- Adding differentiators: coffee-guide-beginners, coffee-guide-experts
- Using date prefixes: 2024-coffee-trends
Changing Slugs After Publishing
Avoid if possible—URLs are permanent addresses. If you must:
- Set up 301 redirect from old to new URL
- Update internal links
- Update sitemap
- Monitor for 404 errors
Related Tools
- Text to Slug - Generate URL-friendly slugs
- Case Converter - Change text case
- URL Encoder - Encode special characters
- Meta Tag Generator - Complete SEO tags
Our slug generator converts titles to clean, SEO-friendly URLs instantly.
