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Hostname

castors.lu

Last fetched

castors.lu resolves to 1 IPv4 address operated by AS16276 in DE.

Nutrition Label

WHISPER CANON · castors.luRouting diversity1.5/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint8.0/10canon.whisper.security/host/castors.lu

Resolution chain

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

IPPrefixASNOperatorCountry
91.134.179.25191.134.0.0/16AS16276—DE

WHOIS identity

No WHOIS records are currently associated with castors.lu in WhisperGraph.

Subdomains

3 observed subdomains of castors.lu.

Subdomain
shop.castors.lu
www.castors.lu

Showing 2 of 3. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from castors.lu in the public web crawl.

13 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 castors.lu.

MechanismTarget
SPF_INCLUDE_spf.google.com

Related pages

Pivot deeper into the graph from castors.lu.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "castors.lu"})-[: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.