Cloudflare, with the boundaries labeled

Provider-specific instructions are dated, sourced from official documentation, and kept separate from portable DNS concepts.

Verified 2026-07-29 · availability-impacting

Onboard a domain to Cloudflare nameservers

Inventory records, sequence DNSSEC safely, replace parent delegation, verify web and email, and preserve a tested rollback path.

Provider-neutral playbook

Use the provider-neutral migration sequence before applying Cloudflare-specific steps.

Portable foundation

Understand DS, DNSKEY, validation, and the states that make a migration secure, insecure, or bogus.

Post-DNS troubleshooting

Move from a correct DNS answer into TLS, redirects, HTTP, CDN, and origin evidence.