Hostname

edux.cz

Last fetched Mon, 29 Jun 2026 19:11:36 GMT

edux.cz resolves to 1 IPv4 address operated by AS197019 in CZ. WHOIS lists registrar:reg-internet-cz as the registrar.

Nutrition Label

Resolution chain

edux.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
89.221.213.50	89.221.208.0/20	AS197019	—	CZ

WHOIS identity

Registrar: registrar:reg-internet-cz
Organization: mike ljungqvist
Contact emails: —

Subdomains

3 observed subdomains of edux.cz.

Subdomain
hostmaster.edux.cz
testy.edux.cz
www.edux.cz

Web-graph footprint

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

16 sites link to this hostname.

44 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

2 SPF mechanisms authorising senders for edux.cz.

Mechanism	Target
SPF_A	edux.cz
SPF_MX	edux.cz

Pivot deeper into the graph from edux.cz.

Cypher and MCP

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

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