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Hostname

mail.cz

Last fetched

mail.cz resolves to 1 IPv4 address operated by AS43037 in CZ. WHOIS lists registrar:reg-seznam as the registrar.

Nutrition Label

WHISPER CANON · mail.czRouting diversity1.5/10Peering density5.4/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint8.0/10canon.whisper.security/host/mail.cz

Resolution chain

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

IPPrefixASNOperatorCountry
77.75.78.19677.75.78.0/23AS43037—CZ

WHOIS identity

Registrar
registrar:reg-seznam
Organization
seznam.cz, a.s.
Contact emails

Subdomains

4 observed subdomains of mail.cz.

Subdomain
imap.mail.cz
koza.mail.cz
mxrelay01.mail.cz
pop3.mail.cz

Web-graph footprint

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

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

4 SPF mechanisms authorising senders for mail.cz.

MechanismTarget
SPF_IP2a02:598::/32
SPF_IP77.75.76.0/23
SPF_IP77.75.78.0/23
SPF_MXmail.cz

Related pages

Pivot deeper into the graph from mail.cz.

Cypher and MCP

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

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