Hostname

gpu.ac.jp

Last fetched Tue, 21 Jul 2026 01:42:13 GMT

gpu.ac.jp resolves to 1 IPv4 address operated by AS37916 in JP.

Nutrition Label

Resolution chain

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

IP	Prefix	ASN	Operator	Country
182.16.229.131	182.16.224.0/21	AS37916	—	JP

WHOIS identity

No WHOIS records are currently associated with gpu.ac.jp in WhisperGraph.

Subdomains

1 observed subdomain of gpu.ac.jp.

Subdomain
smtp.gpu.ac.jp

Web-graph footprint

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

28 sites link to this hostname.

25 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

smtp.gpu.ac.jp

SPF policy

1 SPF mechanism authorising senders for gpu.ac.jp.

Mechanism	Target
SPF_IP	182.16.229.131

Pivot deeper into the graph from gpu.ac.jp.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "gpu.ac.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.