sptr.jp on Whisper Internet Directory

Nutrition Label

Resolution chain

sptr.jp resolves to 8 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
108.138.36.53	108.138.32.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
108.138.36.84	108.138.32.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
108.138.36.92	108.138.32.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
108.138.36.93	108.138.32.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
52.85.78.103	52.85.72.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	US
52.85.78.67	52.85.72.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	US
52.85.78.68	52.85.72.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	US
52.85.78.76	52.85.72.0/21	AS16509	AMAZON-02 - Amazon.com, Inc.	US

WHOIS identity

Registrar

—

Organization

netowl,inc.

Contact emails

whois@netowl.jp

Subdomains

27 observed subdomains of sptr.jp.

Subdomain
biz.sptr.jp
verbspark-staging.sptr.jp
verbspark.sptr.jp
unstable-jte.sptr.jp
teach-buddy-staging.sptr.jp
teach-buddy.sptr.jp
support.sptr.jp
school.sptr.jp
rtc-unstable.sptr.jp
rtc.sptr.jp
rd.sptr.jp
onboarding.sptr.jp
jte.sptr.jp
internal.sptr.jp
hiring.sptr.jp
cp.sptr.jp
corporate.sptr.jp
cognito.sptr.jp
blog.sptr.jp

Showing 19 of 27. View all subdomains →

Web-graph footprint

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

63 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

4 SPF mechanisms authorising senders for sptr.jp.

Mechanism	Target
SPF_INCLUDE	_spf.google.com
SPF_INCLUDE	amazonses.com
SPF_INCLUDE	mail.zendesk.com
SPF_INCLUDE	servers.mcsv.net

Related pages

Pivot deeper into the graph from sptr.jp.

Cypher and MCP

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

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