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Hostname

f4.dk

Last fetched

f4.dk resolves to 1 IPv4 address operated by AS3292 in DK.

Nutrition Label

WHISPER CANON · f4.dkRouting diversity1.5/10Peering density8.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint3.2/10canon.whisper.security/host/f4.dk

Resolution chain

f4.dk resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
87.57.241.4387.57.0.0/16AS3292—DK

WHOIS identity

Registrar
—
Organization
breum data aps
Contact emails
—

Subdomains

2 observed subdomains of f4.dk.

Subdomain
mta-sts.f4.dk
www.f4.dk

Web-graph footprint

Distinct hostnames that link to or from f4.dk in the public web crawl.

28 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

  • f4.dk

Related pages

Pivot deeper into the graph from f4.dk.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "f4.dk"})-[: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.