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Hostname

zserver.cz

Last fetched

zserver.cz resolves to 1 IPv4 address operated by AS16276 in CZ. WHOIS lists registrar:reg-tele3 as the registrar.

Nutrition Label

WHISPER CANON · zserver.czRouting diversity1.5/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings6.8/10WHOIS transparency6.7/10Resolver footprint8.0/10canon.whisper.security/host/zserver.cz

Resolution chain

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

IPPrefixASNOperatorCountry
94.23.174.8494.23.0.0/16AS16276CZ

WHOIS identity

Registrar
registrar:reg-tele3
Organization
ing. jan kopecky, ph.d.
Contact emails

Subdomains

135 observed subdomains of zserver.cz.

Web-graph footprint

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

72 sites link to this hostname.

34 sites linked to from this hostname.

Threat posture

History

Mail and authentication

SPF policy

9 SPF mechanisms authorising senders for zserver.cz.

MechanismTarget
SPF_Azserver.cz
SPF_INCLUDEspf.zserver.cz
SPF_IP164.132.69.185
SPF_IP193.165.180.254
SPF_IP77.78.104.121/32
SPF_IP83.208.137.247
SPF_IP84.242.69.2
SPF_IP90.177.210.109
SPF_MXzserver.cz

Related pages

Pivot deeper into the graph from zserver.cz.

Cypher and MCP

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

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