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How to Look Up DNS for a .br Domain

Updated July 3, 2026 · XploreNetHub editorial guide

To look up DNS for a .br or .com.br domain, run DNS Lookup on the full hostname, verify A, MX, NS and TXT records, and confirm nameservers match your Registro.br panel or DNS host. Cross-check WHOIS for expiry and domain status.

Step-by-step

  1. Confirm the exact domain (company.com.br, not just company).
  2. Run DNS Lookup — e.g. google.com.br.
  3. Check NS — should match Cloudflare, Route53, Registro.br DNS or your provider.
  4. Review A/AAAA (site) and MX (mail) if applicable.
  5. Run WHOIS for status and expiry — e.g. itau.com.br.
  6. After changes, wait at least one full TTL cycle before assuming failure.

What to verify for Brazilian domains

CheckWhat to verifyTool
NameserversNS point to the correct DNS hostDNS Lookup
Site (A/AAAA)Expected server or CDN IP/CNAMEDNS Lookup
Mail (MX)MX and SPF TXT if sending/receiving mailDNS Lookup
Status / expiryActive domain, no near-term expirationWHOIS
HTTPSValid certificate on the public hostnameSSL Checker

Registro.br in context

Registro.br operates the .br ccTLD. Accredited registrars sell and renew domains; DNS may be hosted at Registro.br or external providers as long as NS records are correct.

Categories like .com.br, .org.br and .net.br use the same DNS record types — registration policy differs, not A/MX/TXT mechanics.

Free tools

Frequently asked questions

How to look up .br DNS?

DNS Lookup with the full FQDN including .com.br if registered.

.br vs .com.br?

Both under NIC.br. .com.br is the commercial category.

Where to change nameservers?

At registrar or DNS panel. Confirm with lookup after save.

Propagation in Brazil?

Same as global DNS — TTL-driven. Lower TTL before migrations.

Need MX?

Only for email. HTTP-only sites do not require MX.

WHOIS owner visible?

Partially per Registro.br policy. Registrar and NS usually show.

More guides: DNS Glossary · DNS & SSL Checklist · How to Read WHOIS

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