WWW Resolve
Ensures the domain consistently resolves to one version (WWW or non-WWW).
What is this check?
This check ensures your website is only accessible at one primary domain, either `www.yourdomain.com` or `yourdomain.com`, but not both. The other version should permanently redirect (301) to the primary one.
Why is it important?
Search engines see `www.domain.com` and `domain.com` as two separate websites. If both are active, it creates duplicate content, splitting your SEO authority and confusing search engines.
What is the impact?
This is a critical issue. Duplicate content dilutes your ranking signals and can lead to lower rankings for both versions of your site.