Adding a domain to a project will now also suggest adding its
www counterpart. This ensures visitors can always access your site, regardless of whether they type
www when entering the domain, or not.
www domain guarantees that the Vercel Edge Network can reliably and securely route incoming traffic as quickly as possible, so redirecting non-
www to the
www domain is recommended. Redirecting the other way works too if you prefer a cleaner URL address.
Existing domains are not affected by this change, but we recommend ensuring that your project already has a
www redirect in place.
Check out the documentation as well.