sigfy.jp on Whisper Internet Directory

Nutrition Label

Resolution chain

sigfy.jp resolves to 12 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
13.227.215.185	13.227.215.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	CZ
13.227.215.193	13.227.215.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	CZ
13.227.215.199	13.227.215.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	CZ
13.227.215.44	13.227.215.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	CZ
13.33.25.227	13.33.25.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	US
13.33.25.68	13.33.25.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	US
13.33.25.80	13.33.25.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	US
13.33.25.86	13.33.25.0/24	AS16509	AMAZON-02 - Amazon.com, Inc.	US
18.64.181.20	18.64.180.0/23	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
18.64.181.156	18.64.180.0/23	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
18.64.181.180	18.64.180.0/23	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
18.64.181.164	18.64.180.0/23	AS16509	AMAZON-02 - Amazon.com, Inc.	DE

WHOIS identity

Registrar

—

Organization

(not displayed by registrant's request)

Contact emails

proxy@whoisprotectservice.com

Subdomains

5 observed subdomains of sigfy.jp.

Subdomain
forms-staging.sigfy.jp
message.sigfy.jp
pay.sigfy.jp
ssltest.sigfy.jp

Showing 4 of 5. View all subdomains →

Web-graph footprint

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

15 sites link to this hostname.

9 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mailforward.dnsv.jp

SPF policy

1 SPF mechanism authorising senders for sigfy.jp.

Mechanism	Target
SPF_INCLUDE	amazonses.com

Related pages

Pivot deeper into the graph from sigfy.jp.

Cypher and MCP

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

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