Nameserver Checker

Check whether a domain has switched to Cloudflare or another DNS provider and troubleshoot propagation or configuration problems.

Domain Tools and Practical Guides

Use the guidance below to review domain, DNS, WHOIS, or nameserver settings. When you are ready to register, check availability, registration pricing, and renewal costs directly.

Search and Register a Domain

Before and after a nameserver change, compare the registrar account, public NS results, and the records configured with the new DNS provider.

Nameserver check order

Confirm the nameservers saved in the registrar account
Query public DNS for current NS results
Make sure the new DNS zone contains all required records
Wait for cache refresh before troubleshooting A, CNAME, MX, and TXT records

Common nameserver problem

If authoritative nameservers have not switched, records added to the new DNS provider will not answer public queries. After nameservers switch, changes made in the old DNS panel no longer apply.

FAQ

How long does a nameserver change take?

Usually from a few minutes to 48 hours, depending on registry updates and recursive DNS caching.

How are nameservers and DNS records related?

Nameservers decide which DNS provider answers a query. A, CNAME, MX, and TXT records contain the actual answers.