Hostname

doorn.de

Last fetched Sat, 25 Jul 2026 02:00:49 GMT

doorn.de resolves to 1 IPv4 address operated by AS3320 in DE.

Nutrition Label

Resolution chain

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

IP	Prefix	ASN	Operator	Country
212.185.50.42	212.184.0.0/15	AS3320	—	DE

WHOIS identity

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

Subdomains

3 observed subdomains of doorn.de.

Subdomain
chat.doorn.de
levis.doorn.de
www.doorn.de

Web-graph footprint

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

12 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

mail.r2u-systems.de

SPF policy

4 SPF mechanisms authorising senders for doorn.de.

Mechanism	Target
SPF_IP	109.230.233.170/32
SPF_IP	109.230.233.171/32
SPF_IP	217.89.97.116/32
SPF_IP	83.220.131.176/28

Pivot deeper into the graph from doorn.de.

Cypher and MCP

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

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