Hostname

cthw.cz

Last fetched Sat, 18 Jul 2026 18:25:34 GMT

cthw.cz resolves to 1 IPv4 address operated by AS210712 in CZ.

Nutrition Label

Resolution chain

cthw.cz 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
93.91.158.4	93.91.144.0/20	AS210712	—	CZ

WHOIS identity

No WHOIS records are currently associated with cthw.cz in WhisperGraph.

Subdomains

1 observed subdomain of cthw.cz.

Subdomain
www.cthw.cz

Web-graph footprint

Distinct hostnames that link to or from cthw.cz in the public web crawl.

5 sites linked to from this hostname.

Sample outbound links

Threat posture

History

Mail and authentication

MX records

webhosting1.kabel1.cz

SPF policy

1 SPF mechanism authorising senders for cthw.cz.

Mechanism	Target
SPF_IP	93.91.158.0/24

Pivot deeper into the graph from cthw.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "cthw.cz"})-[: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.