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Hostname

cref13.org.br

Last fetched

cref13.org.br resolves to 1 IPv4 address operated by AS53055 in BR.

Nutrition Label

WHISPER CANON · cref13.org.brRouting diversity1.5/10Peering density1.2/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency6.7/10Resolver footprint8.0/10canon.whisper.security/host/cref13.org.br

Resolution chain

cref13.org.br resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
186.227.205.42186.227.200.0/21AS53055—BR

WHOIS identity

Registrar
—
Organization
conselho regional de educa??o f?sica da 13? regi?o
Contact emails

Subdomains

8 observed subdomains of cref13.org.br.

Subdomain
1doc.cref13.org.br
cpanel.cref13.org.br
ftp.cref13.org.br
mail.cref13.org.br
server.cref13.org.br
spw.cref13.org.br
webmail.cref13.org.br
www.cref13.org.br

Web-graph footprint

Distinct hostnames that link to or from cref13.org.br in the public web crawl.

20 sites link to this hostname.

15 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

4 SPF mechanisms authorising senders for cref13.org.br.

MechanismTarget
SPF_Acref13.org.br
SPF_INCLUDEspf.protection.outlook.com
SPF_IP186.227.205.43
SPF_MXcref13.org.br

Related pages

Pivot deeper into the graph from cref13.org.br.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "cref13.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.