ab92025
CDCloudflare Developers
•Created by ab92025 on 4/3/2025 in #general-help
SaaS custom hostname DCV validation
Hi,
We're utilising the Custom Hostnames functionality with a proxied fallback URL of sites.test.com (which points to an AWS ALB) and are looking for the correct configuration when adding custom hostnames using TXT validation.
When adding a custom hostname for the first time, I need to add a pre-validation TXT record, e.g.
_cf-custom-hostname.example.com or _cf-custom-hostname.test.example.com (some of our customers use subdomains, some not). Are there any further entries after this? I did a further TXT record of _acme-challenge.example.com or _acme-challenge.test.example.com which the Custom Hostnames UI prompted me to do - is this the same as DCV Delegation?
Can I just query when I need to utilise the DCV Delegation for Custom Hostnames entries? We've got a mixture of domains, so I'm trying to gauge when it's relevant:
- domains/subdomains managed via Zones in our Cloudflare account. The DNS is proxied back to our fallback URL.
- domains/subdomains managed by Cloudflare, but in our customer accounts. Some DNS may be proxied, some not.
- domains/subdomains not managed by Cloudflare and utilising external DNS.
Thanks 🙂3 replies