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Hostname

b300.com.br

Last fetched

b300.com.br is a registered hostname under the .br top-level domain. Live infrastructure data is temporarily unavailable; refresh in a moment.

Nutrition Label

WHISPER CANON · b300.com.brRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/b300.com.br

Resolution chain

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WHOIS identity

Registrar
—
Organization
marcos costa martins
Contact emails

Subdomains

2 observed subdomains of b300.com.br.

Subdomain
marketing.b300.com.br
www.b300.com.br

Web-graph footprint

Distinct hostnames that link to or from b300.com.br in the public web crawl.

16 sites link to this hostname.

16 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for b300.com.br.

MechanismTarget
SPF_INCLUDE_spf.mail.hostinger.com
SPF_INCLUDE_spf.rdstation.com.br
SPF_INCLUDEsendgrid.net

Related pages

Pivot deeper into the graph from b300.com.br.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "b300.com.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.