What is Custom-Domain DNS Setup?
Pointing your own address at a BYOB deployment: exact CNAME/TXT records, propagation waits, and status checks. The guided wizard emits the records; DNS does the rest within hours.
Example
Add the provided CNAME for www and the verification TXT at the apex; the wizard polls until the edge serves your domain with automatic SSL.
What people get wrong
Changing nameservers blindly or stacking conflicting A/CNAME records, then debugging “site not found” for a day.
Related terms
KV Domain Map
A key-value lookup binding slugs and custom hostnames to their Workers. Custom-domain support is a map entry plus DNS — no redeploy required.
Custom Domain
Your own address (you.com) instead of a builder subdomain, with automatic SSL. The trust baseline for anything commercial: subdomains convert worse and rank no better.
DNS Record
The domain-system entries pointing your address at hosting: A/AAAA for apex, CNAME for subdomains. Custom-domain wizards set these automatically; manual setup needs exact values from the host.
Cloudflare Worker
Serverless code running on Cloudflare’s edge network, close to visitors worldwide. BYOB deploys generated apps as Workers: no servers to provision, scale, or patch.
Dispatcher Worker
The SaaS router that maps each request — by publish slug or custom domain — to the right per-project Worker. One edge entry point, thousands of isolated apps behind it.
Dispatch Namespace
The isolate group containing a fleet of per-project Workers. Namespaces let one platform deploy, version, and route user projects independently.
Sources
Further reading
Custom Domain Setup in BYOB: A Step by Step DNS Guide
Connect your domain to BYOB with a clear workflow for routing records, verification records, SSL status, and registrar troubleshooting.
From Build to Domain: End-to-End Publish Flow in BYOB (2026 Update)
A complete 2026 flow from project creation to live URL, custom domain activation, and stable release rhythm in BYOB.