www Not Redirecting to Non-www
Quick Answer
Both domains need to be added in Vercel, with one set as primary. Start with "Add both domains" before making broader code changes.
You're in the right place if...
- !www.domain.com and domain.com show different things
- !No redirect between www and non-www
- !SEO split between two URLs
Why this happens
Both domains need to be added in Vercel, with one set as primary.
Fix
Add both domains
Vercel Dashboard → Project → Settings → Domains → Add both: domain.com AND www.domain.com → Set domain.com as primary. Vercel auto-redirects www to non-www.
Prevent this next time
Always add both www and non-www when setting up a domain. Set non-www as primary.
Frequently Asked Questions
Non-www (domain.com). It's shorter, cleaner, and the modern standard.
Yes. Without a redirect, Google sees two separate sites. The redirect consolidates all SEO to one URL.
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