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Hostname

concern.co.jp

Last fetched

concern.co.jp appears in WhisperGraph with partial WHOIS records but no current public IPv4 resolution.

Nutrition Label

WHISPER CANON · concern.co.jpRouting diversity0.0/10Peering density0.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint3.2/10canon.whisper.security/host/concern.co.jp

Resolution chain

concern.co.jp 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
universal concern,
Contact emails
—

Subdomains

1 observed subdomain of concern.co.jp.

Subdomain
www.concern.co.jp

Web-graph footprint

Distinct hostnames that link to or from concern.co.jp in the public web crawl.

11 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

2 SPF mechanisms authorising senders for concern.co.jp.

MechanismTarget
SPF_Awww506b.sakura.ne.jp
SPF_MXconcern.co.jp

Related pages

Pivot deeper into the graph from concern.co.jp.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "concern.co.jp"})-[: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.