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Hostname

sigma.4system.de

Last fetched

sigma.4system.de resolves to 1 IPv4 address operated by AS24940 in DE.

Nutrition Label

WHISPER CANON · sigma.4system.deRouting diversity1.5/10Peering density8.1/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint7.6/10canon.whisper.security/host/sigma.4system.de

Resolution chain

sigma.4system.de resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
213.239.227.89213.239.192.0/18AS24940—DE

WHOIS identity

No WHOIS records are currently associated with sigma.4system.de in WhisperGraph.

Threat posture

History

Mail and authentication

SPF policy

6 SPF mechanisms authorising senders for sigma.4system.de.

MechanismTarget
SPF_Aa.4system.de
SPF_Aalpha.4system.de
SPF_Asigma.4system.de
SPF_IP213.239.227.89
SPF_IP2a01:4f8:222:284e:0:0:0:2
SPF_IP88.198.7.248

Related pages

Pivot deeper into the graph from sigma.4system.de.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "sigma.4system.de"})-[: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.