What makes a slug work for SEO
A good slug is doing two jobs at once: helping search engines understand the page and making the link clickable for humans. The rules that satisfy both:
| Do | Avoid |
|---|---|
| Lowercase only | Mixed case (causes duplicate-URL issues) |
| Hyphens as separators | Underscores, spaces, %20 |
| Target keywords near the front | Stop-word filler |
| Short — a few meaningful words | 12-word title dumps |
| ASCII (transliterated) | Raw accented/non-Latin characters |
Google explicitly treats hyphens as word separators and underscores as word joiners, so my-blog-post is read as three words while my_blog_post is read as one — always use hyphens.
Transliteration: handling non-English titles
A title like “Düşünce Özgürlüğü” or “Café Crème” can’t go into a URL as-is — raw non-ASCII characters get percent-encoded into unreadable %C3%BC soup. This tool transliterates to the closest ASCII equivalents (Turkish ç→c, ş→s, ı→i; German ü→ue, ß→ss; French é→e) so the slug stays clean and shareable. Scripts with no Latin mapping (Chinese, Arabic, Hindi) get stripped, so for those, transliterate to Pinyin or a Romanized form first before generating the slug.
Stop words: trim, but keep meaning
Removing low-value words (the, a, to, in, for) shortens URLs and sharpens the keyword focus — “The Ultimate Guide to SEO in 2026” becomes ultimate-guide-seo-2026. But blindly stripping them can mangle meaning: “To Be or Not to Be” collapses to a useless be-not-be. Disable stop-word removal for titles where every word matters — quotes, song and book titles, proper nouns. The judgment call is yours; the tool just gives you the toggle.
Duplicates and length
Slug generation is deterministic, so two identical titles produce identical slugs — most CMS platforms auto-append -2, -3 to resolve the clash, but if yours doesn’t, differentiate with a distinguishing keyword (python-tutorial-beginners vs python-tutorial-advanced). And mind length: search results display only ~60–70 characters of a URL, so cap long slugs at a word boundary rather than letting them sprawl. For batch work, bulk mode slugifies a whole list of titles at once.