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Hostname

cfb.koeln

Last fetched

cfb.koeln resolves to 1 IPv4 address operated by AS8893 in DE. WHOIS lists iana:1345 as the registrar.

Nutrition Label

WHISPER CANON · cfb.koelnRouting diversity1.5/10Peering density5.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint3.2/10canon.whisper.security/host/cfb.koeln

Resolution chain

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

IPPrefixASNOperatorCountry
212.53.214.197212.53.214.0/23AS8893—DE

WHOIS identity

Registrar
iana:1345
Organization
karl-heinz kaiser
Contact emails

Subdomains

1 observed subdomain of cfb.koeln.

Subdomain
wildcard.cfb.koeln

Web-graph footprint

Distinct hostnames that link to or from cfb.koeln in the public web crawl.

13 sites linked to from this hostname.

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for cfb.koeln.

MechanismTarget
SPF_INCLUDEspf.dcpserver.de

Related pages

Pivot deeper into the graph from cfb.koeln.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "cfb.koeln"})-[: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.