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rfb.gov.br

DNS Records

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Hosting & Network

rfb.gov.br runs on AS10954, with email via Microsoft 365.

Hosting network
AS10954AS10954
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 125 other sites on AS10954. Stable here since we started watching (Jul 23, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to www.receita.fazenda.gov.br.

DNS Records for rfb.gov.br

HostnameTypeTTLPriorityContent
rfb.gov.brA0161.148.231.100
rfb.gov.brMX0rfb-gov-br.mail.protection.outlook.com
rfb.gov.brNS0spo1.serpro.gov.br
rfb.gov.brNS0spo2.serpro.gov.br
rfb.gov.brNS0bsa2.serpro.gov.br
rfb.gov.brNS0bsa1.serpro.gov.br
rfb.gov.brSOA3600bsa1.serpro.gov.br hostmaster.serpro.gov.br 2026093001 14400 3600 1814400 3600
rfb.gov.brTXT0IL0L7TOVSZ9OFGACUJ5HWOQNV2VYX7YT1I77HVJA
rfb.gov.brTXT0v=spf1 ip4:161.148.21.192/26 ip4:161.148.50.192/26 ip4:189.9.20.83 ip4:200.152.40.96 include:spf.protection.outlook.com -all
rfb.gov.brTXT0MS=ms77699374
rfb.gov.brTXT0MS=D79BF9BFD4A6C51AA84631D64664E38D2CFF93F7
rfb.gov.brTXT0dtm-domain-verification=OQzQ0J0RkzPdpkkGrZx4O4jE9_EDTRgMs81MyrsL4_A
rfb.gov.brTXT0globalsign-domain-verification=73F3F0C15DBDDE0D73FD1D2D248D60CD
www.rfb.gov.brA0161.148.231.100
www.rfb.gov.brCNAME0www.receita.fazenda.gov.br
www.rfb.gov.brMX0rfb-gov-br.mail.protection.outlook.com
www.rfb.gov.brNS0spo2.serpro.gov.br
www.rfb.gov.brNS0bsa1.serpro.gov.br
www.rfb.gov.brNS0bsa2.serpro.gov.br
www.rfb.gov.brNS0spo1.serpro.gov.br
www.rfb.gov.brSOA3600bsa1.serpro.gov.br hostmaster.serpro.gov.br 2026100208 14400 3600 1814400 3600
www.rfb.gov.brTXT0MS=ms77699374
www.rfb.gov.brTXT0globalsign-domain-verification=2261A6403A52BDB9B152F93D2F3CC837
www.rfb.gov.brTXT0MS=88A90C14021E05401E5D008655F6292CA7A58E80
www.rfb.gov.brTXT0v=spf1 ip4:161.148.21.192/26 ip4:161.148.50.192/26 ip4:189.9.20.83 ip4:200.152.40.96 include:spf.protection.outlook.com -all
www.rfb.gov.brTXT0globalsign-domain-verification=9FD56F878AF5B80B2976C16B9C056B09

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Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain