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Hostname

castor.de

Last fetched

castor.de appears in WhisperGraph with partial WHOIS records but no current public IPv4 resolution.

Nutrition Label

WHISPER CANON · castor.deRouting diversity0.0/10Peering density0.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint4.6/10canon.whisper.security/host/castor.de

Resolution chain

castor.de has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.

WHOIS identity

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

Subdomains

3 observed subdomains of castor.de.

Subdomain
lbu.castor.de
www.castor.de

Showing 2 of 3. View all subdomains →

Web-graph footprint

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

140 sites link to this hostname.

12 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for castor.de.

MechanismTarget
SPF_INCLUDE_spf-eu.ionos.com

Related pages

Pivot deeper into the graph from castor.de.

Cypher and MCP

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

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