Hostname
est.co.jp
Last fetched
est.co.jp resolves to 1 IPv4 address operated by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation in JP.
Nutrition Label
Resolution chain
est.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 |
|---|---|---|---|---|
| 138.91.1.140 | 138.91.0.0/16 | AS8075 | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | JP |
WHOIS identity
- Registrar
- —
- Organization
- east co.,ltd.
- Contact emails
- —
Subdomains
28 observed subdomains of est.co.jp.
Showing 25 of 28. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from est.co.jp in the public web crawl.
179 sites link to this hostname.
101 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
9 SPF mechanisms authorising senders for est.co.jp.
| Mechanism | Target |
|---|---|
| SPF_A | email-smtp.us-east-1.amazonaws.com |
| SPF_A | mailman.japaneast.cloudapp.azure.com |
| SPF_A | o1.ptr3557.est.co.jp |
| SPF_INCLUDE | _spf.activegate-ss.jp |
| SPF_INCLUDE | _spf.salesforce.com |
| SPF_INCLUDE | spf.list-finder.jp |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_INCLUDE | spfa.mailendo.com |
| SPF_IP | 124.36.104.48/28 |
Related pages
Pivot deeper into the graph from est.co.jp.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "est.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.