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Hostname

sumway.cz

Last fetched

sumway.cz resolves to 1 IPv4 address operated by WEB4U - Web4U s.r.o. in CZ. WHOIS lists registrar:reg-zoner as the registrar.

Nutrition Label

WHISPER CANON · sumway.czRouting diversity1.5/10Peering density2.4/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint4.0/10canon.whisper.security/host/sumway.cz

Resolution chain

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

IPPrefixASNOperatorCountry
81.91.92.23681.91.88.0/21AS39790WEB4U - Web4U s.r.o.CZ

WHOIS identity

Registrar
registrar:reg-zoner
Organization
petr dytrich
Contact emails
—

Subdomains

2 observed subdomains of sumway.cz.

Subdomain
volby.sumway.cz
www.sumway.cz

Web-graph footprint

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

2 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

Related pages

Pivot deeper into the graph from sumway.cz.

Cypher and MCP

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

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