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Hostname

ctrholding.com

Last fetched

ctrholding.com resolves to 1 IPv4 address operated by AS197019 in CZ. WHOIS lists iana:3860 as the registrar.

Nutrition Label

WHISPER CANON · ctrholding.comRouting diversity1.5/10Peering density3.4/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint4.6/10canon.whisper.security/host/ctrholding.com

Resolution chain

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

IPPrefixASNOperatorCountry
89.221.213.10289.221.208.0/20AS197019—CZ

WHOIS identity

Registrar
iana:3860
Organization
ctr development, s.r.o.
Contact emails
—

Subdomains

1 observed subdomain of ctrholding.com.

Subdomain
www.ctrholding.com

Web-graph footprint

Distinct hostnames that link to or from ctrholding.com in the public web crawl.

15 sites link to this hostname.

97 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 ctrholding.com.

MechanismTarget
SPF_INCLUDEspf.protection.outlook.com

Related pages

Pivot deeper into the graph from ctrholding.com.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "ctrholding.com"})-[: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.