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Hostname

cesr.cz

Last fetched

cesr.cz resolves to 1 IPv4 address operated by SAVVY-AS - Savvy s.r.o. in CZ. WHOIS lists registrar:reg-media4web as the registrar.

Nutrition Label

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

Resolution chain

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

IPPrefixASNOperatorCountry
193.19.177.32193.19.176.0/22AS44770SAVVY-AS - Savvy s.r.o.CZ

WHOIS identity

Registrar
registrar:reg-media4web
Organization
savvy, s.r.o.
Contact emails

Subdomains

9 observed subdomains of cesr.cz.

Web-graph footprint

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

13 sites linked to from this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

SPF policy

3 SPF mechanisms authorising senders for cesr.cz.

MechanismTarget
SPF_Acesr.cz
SPF_IP193.19.176.0/22
SPF_MXcesr.cz

Related pages

Pivot deeper into the graph from cesr.cz.

Cypher and MCP

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

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