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No Www

Using the root domain without the www prefix, such as example.com instead of www.example.com, for a website's primary URL.

If you have ever assumed the choice between www and no www affects rankings, you already know the real SEO impact comes from configuration errors, not the prefix.

Key points

  • Choose one version and redirect the other with a 301 redirect.
  • Use the same version in internal links, sitemaps, and canonical tags.
  • Do not let both www and non-www versions resolve without a 301 redirect to consolidate them.
  • Changing the preferred version requires updating all redirects and canonicals.
  • Consistency between the www and non-www version matters more than which prefix you choose for SEO.

A site that split its signals

An e-commerce site launched with both www.example.com and example.com accessible. Google indexed both versions separately. Over six months, the site lost 30% of organic traffic because backlinks and engagement signals were split between the two URLs. A 301 redirect from www to the non-www version consolidated the signals, and traffic recovered within eight weeks.

Three ways it goes wrong

  • Both versions live Letting www and non-www resolve without a redirect splits backlinks, engagement signals, and crawl activity, creating duplicate content and crawl budget waste.
  • Inconsistent internal links Using different versions across internal links, sitemaps, and canonicals confuses search engines about which URL is canonical, weakening ranking signals.
  • Changing without cleanup Switching the preferred version without updating all redirects and canonicals leaves old URLs orphaned, losing accumulated link equity.

Three things it is not

  • Not a ranking factor Google does not treat the www or non-www choice as a ranking signal. The SEO impact comes entirely from how you configure the redirects and canonicals.
  • Not a technical requirement Both www and non-www work equally well for SEO if configured consistently. The choice is about simplicity versus technical flexibility for larger setups.
  • Not a ranking improvement tactic Simply switching from www to non-www or vice versa will not improve rankings without proper redirects and canonical setup.

Common questions

www vs non www: which is better for SEO?

Neither is better. The key is consistency: pick one version and redirect the other with a 301 redirect.

Is www still used?

Yes, many large sites still use www for technical reasons like cookie isolation and CDN management.

Why no www in a URL?

Some sites prefer the shorter, cleaner brand URL. It works fine as long as you redirect the www version.

Sources

  1. Google Search Central Explains how to consolidate duplicate URLs with redirects
  2. MDN Web Docs Covers technical differences between www and non-www
  3. Google Search Central Details canonicalization best practices for preferred domains
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