This page is served the same way every Quickieweb site is: rendered once, written to object storage, handed to a CDN. There is no separate marketing stack, no CMS behind it, and no server answering this request.
That is on purpose. A platform whose own site runs on something else is telling you something, and it is not flattering.
Where it is
Working today: the template engine and its validator, design tokens, static pages, multi-site provisioning, per-site membership, and publishing.
Not yet: public sign-up, custom domains, and per-site 404 pages. Those are named because a roadmap that only lists wins is a brochure.