Hostname

ktk.cz

Last fetched Thu, 23 Jul 2026 16:20:38 GMT

ktk.cz resolves to 1 IPv4 address operated by AS207198 in CZ. WHOIS lists registrar:reg-wedos as the registrar.

Nutrition Label

Resolution chain

ktk.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
185.163.40.57	185.163.40.0/22	AS207198	—	CZ

WHOIS identity

Registrar: registrar:reg-wedos
Organization: kabelova televize koprivnice s.r.o.
Contact emails: —

Subdomains

10 observed subdomains of ktk.cz.

Subdomain
aaa.ktk.cz
apkt.ktk.cz
comtech.ktk.cz
imap.ktk.cz
mail.ktk.cz
pop3.ktk.cz
portal.ktk.cz
smtp.ktk.cz
speedtest.ktk.cz
www.ktk.cz

Web-graph footprint

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

17 sites link to this hostname.

21 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail.ktk.cz

SPF policy

5 SPF mechanisms authorising senders for ktk.cz.

Mechanism	Target
SPF_A	ktk.cz
SPF_IP	185.163.40.128/28
SPF_IP	185.163.40.48/28
SPF_IP	2a0a:a800:0:0:4:0:0:57
SPF_MX	ktk.cz

Pivot deeper into the graph from ktk.cz.

Cypher and MCP

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

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