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Hostname

cerva.com

Last fetched

cerva.com resolves to 1 IPv4 address operated by BLUETONE-AS The Czech Republic in CZ.

Nutrition Label

WHISPER CANON · cerva.comRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/cerva.com

Resolution chain

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

IPPrefixASNOperatorCountry
82.99.162.11382.99.128.0/18AS25248BLUETONE-AS The Czech RepublicCZ

WHOIS identity

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Subdomains

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Web-graph footprint

Distinct hostnames that link to or from cerva.com in the public web crawl.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

9 SPF mechanisms authorising senders for cerva.com.

MechanismTarget
SPF_INCLUDEcuda2.bluetone.cz
SPF_INCLUDEmail.bluetone.cz
SPF_INCLUDEsendgrid.net
SPF_INCLUDEservers.mcsv.net
SPF_INCLUDEspf.ecmanage.nl
SPF_INCLUDEspf.eu.exclaimer.net
SPF_INCLUDEspf.protection.outlook.com
SPF_IP82.99.161.10
SPF_IP82.99.162.112

Related pages

Pivot deeper into the graph from cerva.com.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "cerva.com"})-[: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.