cloudflare saas domains support
Cloudflare for SaaS allows you to extend the security and performance benefits of Cloudflare's network to your customers via their own custom or vanity domains.
As a SaaS provider, you may want to support subdomains under your own zone in addition to letting your customers use their own domain names with your services. For example, a customer may want to use their vanity domain app.customer.com to point to an application hosted on your Cloudflare zone service.saas.com. Cloudflare for SaaS allows you to increase security, performance, and reliability of your customers' domains.