Hostname

fcn.de

Last fetched Tue, 26 May 2026 18:20:09 GMT

fcn.de resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.

Nutrition Label

Resolution chain

fcn.de 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
104.21.11.140	104.21.0.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.166.38	172.67.160.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

No WHOIS records are currently associated with fcn.de in WhisperGraph.

Subdomains

30 observed subdomains of fcn.de.

Subdomain
adventskalender.fcn.de
tippspiel.fcn.de
supabase.fcn.de
shop.fcn.de
service.fcn.de
sepa.fcn.de
seating.fcn.de
remote.fcn.de
o.fcn.de
nlz.fcn.de
news.fcn.de
mitgliedschaft.fcn.de
mitglied.fcn.de
mail02.fcn.de
jahrhundertelf.fcn.de
info.fcn.de
hook.fcn.de
fussballschule.fcn.de
event.fcn.de
einlaufkinder.fcn.de
clubtv-cdn.fcn.de
bewerbung.fcn.de
b2b.fcn.de
auswaerts.fcn.de
api.fcn.de

Showing 25 of 30. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from fcn.de in the public web crawl.

815 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mx.noris.net

SPF policy

6 SPF mechanisms authorising senders for fcn.de.

Mechanism	Target
SPF_A	fcn.de
SPF_A	mx4.eventim.de
SPF_INCLUDE	agenturserver.de
SPF_INCLUDE	mailgun.org
SPF_INCLUDE	spf.noris.net
SPF_MX	fcn.de

Pivot deeper into the graph from fcn.de.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "fcn.de"})-[: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.