1post.jp on Whisper Internet Directory

Nutrition Label

Resolution chain

1post.jp resolves to 15 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
13.112.6.185	13.112.0.0/14	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.114.185.61	13.112.0.0/14	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.115.182.143	13.112.0.0/14	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.192.174.228	13.192.0.0/16	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.192.71.244	13.192.0.0/16	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.231.73.213	13.230.0.0/15	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
18.179.74.229	18.179.0.0/16	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
3.115.145.0	3.112.0.0/14	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
35.75.132.45	35.72.0.0/13	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
35.75.79.142	35.72.0.0/13	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
52.196.85.233	52.196.0.0/14	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
52.68.41.79	52.68.0.0/15	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
52.68.45.118	52.68.0.0/15	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
54.150.253.166	54.150.0.0/16	AS16509	AMAZON-02 - Amazon.com, Inc.	JP
13.193.131.57	13.193.128.0/17	AS16509	AMAZON-02 - Amazon.com, Inc.	JP

WHOIS identity

Registrar

—

Organization

medical agency

Contact emails

jprs-staff@sakura.ad.jp

Subdomains

5 observed subdomains of 1post.jp.

Subdomain
job.1post.jp
staging.1post.jp
rehajob.1post.jp

Showing 3 of 5. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from 1post.jp in the public web crawl.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

medicalagency.sakura.ne.jp

SPF policy

2 SPF mechanisms authorising senders for 1post.jp.

Mechanism	Target
SPF_IP	153.126.175.61
SPF_IP	153.126.183.89

Related pages

Pivot deeper into the graph from 1post.jp.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "1post.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.