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Hostname

castel.jp

Last fetched

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

Nutrition Label

WHISPER CANON · castel.jpRouting diversity3.0/10Peering density4.6/10MOAS conflict✓ noneThreat-feed listings8.0/10WHOIS transparency10.0/10Resolver footprint4.6/10canon.whisper.security/host/castel.jp

Resolution chain

Resolution chain data is temporarily unavailable. Refresh in a moment to retry.

WHOIS identity

Registrar
—
Organization
(not displayed by registrant's request)
Contact emails

Subdomains

10 observed subdomains of castel.jp.

Subdomain
analytics.castel.jp
c01.castel.jp
c02.castel.jp
c03.castel.jp
c04.castel.jp
crawler.castel.jp
dev.castel.jp
devhotel.castel.jp
hotel.castel.jp
staging.castel.jp

Web-graph footprint

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

238 sites link to this hostname.

449 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 castel.jp.

MechanismTarget
SPF_IP153.121.92.20
SPF_IP153.121.92.44/30
SPF_IP160.16.50.146

Related pages

Pivot deeper into the graph from castel.jp.

Cypher and MCP

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

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