Hyphens Over Underscores became a clearer on-page SEO recommendation after Google updated its URL structure guidance in October 2026. The practical point is narrow but useful: use hyphens to separate words in new URL paths because they make word boundaries easier for users and search systems to read.
This does not mean every older URL with an underscore is suddenly a liability. The research available for this update describes a documentation clarification, not a new ranking requirement. For editors, publishers, directories, service comparison sites, and mixed-topic networks, the best response is a careful URL policy rather than a rushed migration.
Why Hyphens Over Underscores Changed The URL Brief
Hyphens Over Underscores And Word Boundaries
Google Search Central updated its URL structure best practices on October 21, 2026, to explain why hyphens are preferred in URL paths: hyphens separate words, while underscores can make concepts appear joined, such as in a technical-looking string like format_date. That update was reported by SERP Mentor.
The case for Hyphens Over Underscores is mostly about clarity. A URL such as /content-edits-that-protect-seo/ is easier to scan than a version where each word is connected by underscores. Users may not study URLs closely, but readable slugs can still help when links are copied, shared, reviewed in analytics, or assessed during editorial QA.
For search engines, the stated logic is similar: clearer word separation makes the URL path easier to interpret. That does not make the slug the main ranking factor. It simply gives content teams one more reason to use consistent, readable naming for new pages.
What The October 2026 Clarification Did Not Change
Why Existing URLs Usually Should Stay Put
The October 2026 update was officially logged on October 23, 2026, under the heading about crawlable URL structures, and coverage of the change noted that it did not introduce a new ranking rule or require existing URLs to be renamed, according to GEroundtable.
That distinction matters. URL changes can create operational risk even when the new slug looks cleaner. A change normally requires 301 redirects, revised internal links, sitemap updates, analytics annotation, and a check for canonical tags. If those steps are incomplete, a site can create avoidable crawl signals, broken links, or confusing measurement.
For that reason, Hyphens Over Underscores should guide new slugs, not trigger automatic rewriting of every older path. A change is more defensible during a planned migration, replatforming, taxonomy cleanup, or consolidation project where redirects and QA are already part of the work.
Teams should also be cautious about expected gains. The research notes describe Google’s update as a clarification. That means any ranking lift from changing only underscores to hyphens may be difficult to isolate, especially once content quality, internal linking, page intent, crawlability, and external signals are considered.
A Safer Audit Process For URL Naming
Checks Before Any Slug Change
A practical URL audit should start with evidence, not preference. Export indexed URLs, group pages by template, and mark which slugs contain underscores, unnecessary parameters, uppercase inconsistencies, opaque IDs, or terms that no longer match the page. Then decide whether the issue affects user clarity, crawl management, reporting, or brand trust.
- Use hyphens for new page slugs, category paths, article URLs, and evergreen resource pages.
- Leave stable underscore URLs alone unless a broader migration or cleanup justifies the redirect work.
- Document every changed URL with the old path, new path, redirect status, canonical target, and internal link updates.
- Check XML sitemaps, navigation links, breadcrumbs, analytics filters, and campaign references after launch.
- Avoid keyword stuffing in slugs; readable wording is safer than repeating target phrases.
This is also where editorial and technical teams need shared rules. Writers often create slugs in a CMS, while developers manage routing and redirects. If the site lacks a naming convention, the same topic can produce inconsistent paths over time. A short standard can prevent avoidable cleanup later.
For teams revising page templates after search updates, this URL work pairs naturally with broader on-page SEO tactics after Google updates. The connection is practical: headings, intent, internal links, and URL structure should all support the same page purpose.
How To Apply The Guidance Across Mixed Sites
Editorial Rules For Service And Community Pages
Many sites publish across categories such as service comparisons, writing resources, directories, nonprofit pages, arts events, education, local services, or archives. In those environments, a clean URL rule helps reduce ambiguity. A recruitment page, a writing-service article, and a community theatre archive may have very different audiences, but each benefits from a readable path.
For example, a service comparison page should use a short descriptive slug rather than a stuffed phrase that tries to target every variation. A nonprofit page should name the program plainly rather than compressing several internal labels into one path. A history or archive page should avoid making unsupported claims in the slug, because the URL itself can set expectations before the reader reaches the source material.
Related network sites like Talk and Play should adhere to this naming policy to maintain consistency in publishing resources, community updates, or informational content. Consistency simplifies editorial QA and minimizes issues during potential future migrations due to different URL styles.
The limitation is that URLs cannot fix weak content. A clean hyphenated slug will not compensate for thin sourcing, unclear intent, duplicated pages, or unsupported claims. It can help make a page easier to understand, but the page still needs accurate information, clear authorship standards, and a reason to exist.
Hyphens Over Underscores For Practical URL SEO
Use The Rule Without Overreacting
The sensible policy is direct: apply Hyphens Over Underscores to new URLs, treat existing underscore URLs with caution, and change old paths only when the operational case is strong. This aligns the slug with Google’s clarified guidance without creating unnecessary migration risk.
A good URL standard should be short enough for writers to follow. Use lowercase where the server setup allows it, keep slugs descriptive, separate words with hyphens, limit unnecessary parameters, and avoid using fragments to present materially different content. Keep the path stable after publication unless there is a documented reason to change it.
Most teams will get more value from a disciplined URL workflow than from a one-time cleanup sprint. Add slug review to the publishing checklist. Require redirect mapping during migrations. Annotate major URL changes in analytics. After launch, check crawl reports, index coverage, and internal links before assuming the change helped or hurt performance.
Treat Hyphens Over Underscores as a clean naming convention, not a shortcut to rankings. The strongest use of the October 2026 clarification is to reduce ambiguity, protect future site maintenance, and keep URLs readable for people who review, share, audit, and manage content over time.