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Hostname

castlab.nl

Last fetched

castlab.nl resolves to 3 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:registrar proxy as the registrar.

Nutrition Label

WHISPER CANON · castlab.nlRouting diversity3.0/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint8.6/10canon.whisper.security/host/castlab.nl

Resolution chain

castlab.nl resolves to 3 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
104.21.3.21104.21.0.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
172.67.130.13172.67.128.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
185.104.29.148185.104.29.0/24AS206281AS-ZXCS - Stichting DIGI NLNL

WHOIS identity

Registrar
registrar:registrar proxy
Organization
—
Contact emails
—

Subdomains

2 observed subdomains of castlab.nl.

Subdomain
mail.castlab.nl
www.castlab.nl

Web-graph footprint

Distinct hostnames that link to or from castlab.nl in the public web crawl.

13 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for castlab.nl.

MechanismTarget
SPF_INCLUDEspf.protection.outlook.com

Related pages

Pivot deeper into the graph from castlab.nl.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "castlab.nl"})-[: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.