Choosing a Domain

Non-WWW Subdomain

If you have an application that needs to run on a subdomain that is not 'www' (like: or, there are no further considerations.

Choose the correct domain from the list presented in the Expedited WAF setup flow.

WWW Subdomain

The www subdomain is a special case because, from a UX standpoint, ordinary users treat and as equivalents.

Choosing the 'www' subdomain option implicitly covers BOTH and

Apex Domain (no subdomain)

If you want people to browse your site from the apex domain ( you should still choose 'www' because you'll be able to let people connect on and then redirect them to

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