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Hostname

cfa.org.br

Last fetched

cfa.org.br resolves to 2 IPv4 addresses operated by RD TELECOM LTDA -ME in BR.

Nutrition Label

WHISPER CANON · cfa.org.brRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/cfa.org.br

Resolution chain

cfa.org.br resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
186.237.216.202186.237.216.0/21AS263558RD TELECOM LTDA -MEBR
186.237.216.202186.237.216.0/21AS263558RD TELECOM LTDA -MEBR
189.84.138.238189.84.136.0/21AS262989CLICKNET BRASIL INFORMATICA E TELECOMUNICACOES LTBR
189.84.138.238189.84.136.0/21AS262989CLICKNET BRASIL INFORMATICA E TELECOMUNICACOES LTBR

WHOIS identity

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Subdomains

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Web-graph footprint

Distinct hostnames that link to or from cfa.org.br in the public web crawl.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

12 SPF mechanisms authorising senders for cfa.org.br.

MechanismTarget
SPF_Acfa.org.br
SPF_Alog.homemurbano.com.br
SPF_INCLUDE_spf.aremail.com.br
SPF_INCLUDE_spf.google.com
SPF_INCLUDEinfraxgroup.com.br
SPF_INCLUDEservers.mcsv.net
SPF_INCLUDEspf.homemurbano.com.br
SPF_IP186.237.216.195/27
SPF_IP189.84.138.226/27
SPF_IP5.161.187.80
SPF_IP65.109.111.240
SPF_MXcfa.org.br

Related pages

Pivot deeper into the graph from cfa.org.br.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "cfa.org.br"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)
      -[:ROUTES]->(asn:ASN)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, asn.name AS asn, n.name AS operator
LIMIT 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.