Hostname
johnan.co.jp
Last fetched
johnan.co.jp appears in WhisperGraph with partial WHOIS records but no current public IPv4 resolution.
Nutrition Label
Resolution chain
johnan.co.jp has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.
WHOIS identity
- Registrar
- —
- Organization
- johnan academic preparatory institute,
- Contact emails
- —
Subdomains
8 observed subdomains of johnan.co.jp.
Web-graph footprint
Distinct hostnames that link to or from johnan.co.jp in the public web crawl.
101 sites link to this hostname.
4 sites linked to from this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
15 SPF mechanisms authorising senders for johnan.co.jp.
| Mechanism | Target |
|---|---|
| SPF_A | jsystem-covez.jp |
| SPF_A | www.johnan-teacher.jp |
| SPF_INCLUDE | _spf.autobiz.jp |
| SPF_INCLUDE | _spf.shared-server.net |
| SPF_INCLUDE | crmstyle.com |
| SPF_INCLUDE | spf.e-school.jp |
| SPF_INCLUDE | spf.satorimail.net |
| SPF_IP | 143.189.215.32/28 |
| SPF_IP | 153.120.29.7 |
| SPF_IP | 153.126.182.178 |
| SPF_IP | 153.153.144.116/31 |
| SPF_IP | 153.153.160.29 |
| SPF_IP | 153.153.160.30/32 |
| SPF_IP | 210.152.83.113 |
| SPF_IP | 219.101.53.4/32 |
Related pages
Pivot deeper into the graph from johnan.co.jp.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "johnan.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 20Or query Whisper from your own LLM workflow via the Whisper MCP server.