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Hostname

mail.jca.apc.org

Last fetched

mail.jca.apc.org resolves to 1 IPv4 address operated by SAKURA-A SAKURA Internet Inc. in JP.

Nutrition Label

WHISPER CANON · mail.jca.apc.orgRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/mail.jca.apc.org

Resolution chain

mail.jca.apc.org resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
133.242.181.238133.242.0.0/16AS7684SAKURA-A SAKURA Internet Inc.JP

WHOIS identity

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Subdomains

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Web-graph footprint

Distinct hostnames that link to or from mail.jca.apc.org in the public web crawl.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for mail.jca.apc.org.

MechanismTarget
SPF_INCLUDEspf-01.jca.apc.org
SPF_INCLUDEspf-02.jca.apc.org
SPF_MXmail.jca.apc.org

Related pages

Pivot deeper into the graph from mail.jca.apc.org.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "mail.jca.apc.org"})-[: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.