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Hostname

404server.cz

Last fetched

404server.cz resolves to 1 IPv4 address operated by AS35236 in CZ. WHOIS lists registrar:reg-gransy as the registrar.

Nutrition Label

WHISPER CANON · 404server.czRouting diversity1.5/10Peering density5.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint8.0/10canon.whisper.security/host/404server.cz

Resolution chain

404server.cz resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
91.241.9.15491.241.8.0/22AS35236—CZ

WHOIS identity

Registrar
registrar:reg-gransy
Organization
404.cz s.r.o.
Contact emails
—

Subdomains

10 observed subdomains of 404server.cz.

Subdomain
demo.404server.cz
dev-api.404server.cz
garteko.404server.cz
mail.404server.cz
s1.404server.cz
sanomed.404server.cz
wildcard.404server.cz

Showing 7 of 10. View all subdomains →

Threat posture

History

Mail and authentication

MX records

Related pages

Pivot deeper into the graph from 404server.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "404server.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.