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Hostname

cerna-black.cz

Last fetched

cerna-black.cz resolves to 1 IPv4 address operated by CASABLANCA-AS - CASABLANCA INT a.s. in CZ.

Nutrition Label

WHISPER CANON · cerna-black.czRouting diversity1.5/10Peering density4.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint8.6/10canon.whisper.security/host/cerna-black.cz

Resolution chain

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

IPPrefixASNOperatorCountry
109.123.223.120109.123.216.0/21AS15685CASABLANCA-AS - CASABLANCA INT a.s.CZ

WHOIS identity

No WHOIS records are currently associated with cerna-black.cz in WhisperGraph.

Subdomains

5 observed subdomains of cerna-black.cz.

Subdomain
admin.cerna-black.cz
mail.cerna-black.cz
mysql.cerna-black.cz
smtp.cerna-black.cz
www.cerna-black.cz

Web-graph footprint

Distinct hostnames that link to or from cerna-black.cz in the public web crawl.

11 sites link to this hostname.

23 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 cerna-black.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "cerna-black.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.