Hostname

cosern.com.br

Last fetched Tue, 28 Jul 2026 12:21:46 GMT

cosern.com.br appears in WhisperGraph with partial WHOIS records but no current public IPv4 resolution.

Nutrition Label

Resolution chain

cosern.com.br has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.

WHOIS identity

Registrar

—

Organization

companhia energetica do rio grande do norte

Contact emails

Subdomains

6 observed subdomains of cosern.com.br.

Subdomain
autoatendimento.cosern.com.br
clientescorporativos.cosern.com.br
mx.cosern.com.br
servicos.cosern.com.br
spf.cosern.com.br
www.cosern.com.br

Web-graph footprint

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

56 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

iberdrola.in.tmes.trendmicro.eu

SPF policy

2 SPF mechanisms authorising senders for cosern.com.br.

Mechanism	Target
SPF_INCLUDE	spf.cosern.com.br
SPF_INCLUDE	spf.iberdrola.com

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

Cypher and MCP

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

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