Hostname

stbook.co.jp

Last fetched Mon, 10 Aug 2026 14:53:27 GMT

stbook.co.jp resolves to 2 IPv4 addresses operated by GMOCL - GMO GlobalSign Holdings K.K. in JP.

Nutrition Label

Resolution chain

stbook.co.jp resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
153.122.74.35	153.122.64.0/20	AS131921	GMOCL - GMO GlobalSign Holdings K.K.	JP
85.131.210.70	85.131.192.0/18	AS131965	XSERVER - Xserver Inc.	JP

WHOIS identity

Registrar: —
Organization: sandt publishing
Contact emails: —

Subdomains

2 observed subdomains of stbook.co.jp.

Subdomain
mail.stbook.co.jp
www.stbook.co.jp

Web-graph footprint

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

46 sites link to this hostname.

13 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail.stbook.co.jp

SPF policy

5 SPF mechanisms authorising senders for stbook.co.jp.

Mechanism	Target
SPF_A	stbook.co.jp
SPF_A	sv1506.xserver.jp
SPF_INCLUDE	spf.bmv.jp
SPF_INCLUDE	spf.sender.xserver.jp
SPF_MX	stbook.co.jp

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

Cypher and MCP

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

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