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Hostname

41.cz

Last fetched

41.cz resolves to 1 IPv4 address operated by AS47317 in CZ. WHOIS lists registrar:reg-genreg as the registrar.

Nutrition Label

WHISPER CANON · 41.czRouting diversity1.5/10Peering density1.2/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint3.2/10canon.whisper.security/host/41.cz

Resolution chain

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

IPPrefixASNOperatorCountry
93.190.48.1493.190.48.0/21AS47317—CZ

WHOIS identity

Registrar
registrar:reg-genreg
Organization
jan kocab
Contact emails

Subdomains

4 observed subdomains of 41.cz.

Subdomain
ddm.41.cz
mail-antispam.41.cz
mail.41.cz
www.41.cz

Web-graph footprint

Distinct hostnames that link to or from 41.cz in the public web crawl.

6 sites link to this hostname.

1 site 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 41.cz.

MechanismTarget
SPF_INCLUDEspf.web4ce.cz
SPF_MX41.cz

Related pages

Pivot deeper into the graph from 41.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "41.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.