Hostname

challenge-web.work

Last fetched Tue, 30 Jun 2026 12:10:11 GMT

challenge-web.work resolves to 2 IPv4 addresses operated by AS7506 in JP. WHOIS lists iana:49 as the registrar.

Nutrition Label

Resolution chain

challenge-web.work resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
118.27.125.171	118.27.0.0/17	AS7506	—	JP
208.91.112.55	208.91.112.0/24	AS40934	FORTINET - Fortinet Inc.	US
208.91.112.55	208.91.112.0/24	AS40934	FORTINET - Fortinet Inc.	CA

WHOIS identity

Registrar: iana:49
Organization: whois privacy protection service by muumuudomain
Contact emails: —

Subdomains

1 observed subdomain of challenge-web.work.

Subdomain
www.challenge-web.work

Web-graph footprint

Distinct hostnames that link to or from challenge-web.work in the public web crawl.

208 sites linked to from this hostname.

Sample inbound links

codexcode.jp

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mx01.lolipop.jp

SPF policy

1 SPF mechanism authorising senders for challenge-web.work.

Mechanism	Target
SPF_INCLUDE	_spf.lolipop.jp

Pivot deeper into the graph from challenge-web.work.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "challenge-web.work"})-[: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.