Hostname

nejkov.cz

Last fetched Thu, 06 Aug 2026 08:33:22 GMT

nejkov.cz resolves to 1 IPv4 address operated by MASTER-AS - MasterDC s.r.o. in CZ. WHOIS lists registrar:reg-internet-cz as the registrar.

Nutrition Label

Resolution chain

nejkov.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
185.58.41.96	185.58.40.0/22	AS24971	MASTER-AS - MasterDC s.r.o.	CZ

WHOIS identity

Registrar: registrar:reg-internet-cz
Organization: ing. adam guryča
Contact emails: —

Subdomains

2 observed subdomains of nejkov.cz.

Subdomain
is.nejkov.cz
www.nejkov.cz

Web-graph footprint

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

4 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 nejkov.cz.

Mechanism	Target
SPF_INCLUDE	spf.seznam.cz

Pivot deeper into the graph from nejkov.cz.

Cypher and MCP

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

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