URL Slug Validator
Score USA blog slugs for SEO clicks in seconds. Paste like Best_Wireless Headphones!!, get 0–100 score with issues plus cleaned suggestion instantly offline with no signup with lowercase hyphen rules length checks plus stop-word and keyword guidance for posts products and docs across SEO publishing workflows daily plus underscore warnings and 301 migration rules for bloggers shops realtors docs startups and newsroom desks.
Check whether a URL slug follows a valid lowercase pattern and find illegal characters to remove with this free slug validator for URLs and routes.
Calculator Inputs
About Slug Check
Score USA blog slugs for SEO clicks in seconds. Paste like Best_Wireless Headphones!!, get 0–100 score with issues plus cleaned suggestion instantly offline with no signup with lowercase hyphen rules length checks plus stop-word and keyword guidance for posts products and docs across SEO publishing workflows daily plus underscore warnings and 301 migration rules for bloggers shops realtors docs startups and newsroom desks.
Scores 100 across lowercase, hyphens not _/space, ASCII, no --/edge, <60 chars, minimal stop-words. Lists deductions + cleaned suggestion.
Minor ranking, major CTR — readable URLs win glances. Local.
USA: 3-5 words best-wireless-headphones-2026 beats long.
Old URLs: Change only with 301, else keep.
Limits: Slug only, not title/meta.
Slug anatomy: Lowercase letters, numbers, and hyphens only — no spaces, underscores, or capitals. Austin bloggers slugging $1,000 posts convert titles to 5-word hyphen chains on 09/22/2026.
Length discipline: Under 60 characters keeps full URLs visible in results. Chicago shops naming $200 products trim color variants into filters, not slugs.
Keyword placement: Lead with the ranking term so truncation keeps meaning. Miami realtors slugging addresses lead with neighborhood over street number.
Stop words: Drop a, the, and for brevity unless readability suffers. New York desks slugging $50,000 investigations keep two prepositions max.
Stability promise: Slugs are permanent addresses — changing one breaks links and rankings. Denver docs versioning guides use dated prefixes instead of renaming.
API versioning: Boston SaaS docs versioning $4M APIs embed v2 in slugs permanently — never rename versions. Philadelphia universities cataloging $80,000 course pages slug department plus number for stability on 09/22/2026.
Episode numbering: San Francisco podcasts numbering 400 episodes lead slugs with zero-padded counts for sort order. Atlanta restaurants menuing dishes slug signature plates for review links.
VIN stock: Dallas dealers stocking $30,000 vehicles slug year-make-model for search plus memorability. Phoenix realtors farming zip codes anchor farm pages that compound authority yearly.
Date prefixes: News archives prefix YYYY-MM slugs that sort chronologically and never collide across beats.
Where it is used
Bloggers pre-publish WordPress checks, shops auditing Shopify URLs, devs reviewing routes, SEOs cleaning sitemaps, and students learning hyphen rules Austin bloggers slug $1,000 posts, Chicago shops name $200 products, Miami realtors list addresses, Denver docs version guides, Seattle startups name features, and New York desks slug $50,000 investigations Boston SaaS docs version $4M APIs, San Francisco podcasts number 400 episodes, Dallas car dealers stock $30,000 VINs, Atlanta restaurants menu dishes, Phoenix realtors farm zip codes, and Philadelphia universities catalog $80,000 courses.
How to use the Slug Check
- URL Slug — enter the value (e.g. best-wireless-headphones-2026).
- Calculate — press the Calculate button to see the result instantly above.
Formula
100 minus uppercase15 underscore10 space20 specials15 double5 edge5 long10 stop5 → suggestion lower hyphen clean 75.
Examples
Messy slug
Clean slug
Long slug
Frequently Asked Questions
- Do keywords in URLs still matter?
- Slightly for ranking, a lot for click-through. Users read URLs in results — a clean slug wins the glance.
- Should I change old ugly URLs?
- Only with proper 301 redirects and a reason (rebrand, migration). Changing URLs for tidiness alone risks more than it gains.
- How long is too long?
- Past ~75 characters, truncation and dilution kick in. Three to five descriptive words is the sweet spot.
- Underscores or hyphens?
- Hyphens — search engines treat them as separators but join underscore words together.
- Change old slugs?
- Avoid it. If forced, 301-redirect every old URL to preserve rankings and links.
- Stored anywhere?
- No. Validation runs locally in your browser. No slugs are stored.