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Hostname

gck.co.jp

Last fetched

gck.co.jp resolves to 1 IPv4 address operated by AS4713 in JP.

Nutrition Label

WHISPER CANON · gck.co.jpRouting diversity1.5/10Peering density7.5/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint3.2/10canon.whisper.security/host/gck.co.jp

Resolution chain

gck.co.jp resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
27.133.240.17427.133.240.0/22AS4713—JP

WHOIS identity

Registrar
—
Organization
g.c kikaku corporation
Contact emails
—

Subdomains

3 observed subdomains of gck.co.jp.

Subdomain
iis10.gck.co.jp
test.gck.co.jp
www.gck.co.jp

Web-graph footprint

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

53 sites link to this hostname.

35 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

6 SPF mechanisms authorising senders for gck.co.jp.

MechanismTarget
SPF_INCLUDE_spf.activegate-ss.jp
SPF_INCLUDEcrmstyle.com
SPF_INCLUDEspf.protection.outlook.com
SPF_IP106.161.25.49
SPF_IP210.169.253.66
SPF_IP39.110.224.81

Related pages

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

Cypher and MCP

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

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