Hostname

sjd.co.jp

Last fetched Tue, 04 Aug 2026 00:54:47 GMT

sjd.co.jp resolves to 1 IPv4 address operated by OCN - NTT DOCOMO BUSINESS,Inc. in JP.

Nutrition Label

Resolution chain

sjd.co.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
27.133.241.143	27.133.240.0/22	AS4713	OCN - NTT DOCOMO BUSINESS,Inc.	JP

WHOIS identity

Registrar: —
Organization: sjd co.,ltd.
Contact emails: —

Subdomains

2 observed subdomains of sjd.co.jp.

Subdomain
mail.sjd.co.jp
www.sjd.co.jp

Web-graph footprint

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

52 sites link to this hostname.

37 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail.sjd.co.jp

SPF policy

3 SPF mechanisms authorising senders for sjd.co.jp.

Mechanism	Target
SPF_IP	2001:e42:101:4:59:106:13:100
SPF_IP	27.133.241.143
SPF_IP	59.106.13.100/32

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

Cypher and MCP

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

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