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Hostname

a4ua.nl

Last fetched

a4ua.nl resolves to 1 IPv4 address operated by AS20857 in NL.

Nutrition Label

WHISPER CANON · a4ua.nlRouting diversity1.5/10Peering density1.2/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint4.0/10canon.whisper.security/host/a4ua.nl

Resolution chain

a4ua.nl resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
37.97.208.9137.97.128.0/17AS20857—NL

WHOIS identity

No WHOIS records are currently associated with a4ua.nl in WhisperGraph.

Subdomains

2 observed subdomains of a4ua.nl.

Subdomain
mail.a4ua.nl
www.a4ua.nl

Threat posture

History

Mail and authentication

MX records

SPF policy

4 SPF mechanisms authorising senders for a4ua.nl.

MechanismTarget
SPF_Aa4ua.nl
SPF_Ahoe.re
SPF_INCLUDEetv.cx
SPF_MXa4ua.nl

Related pages

Pivot deeper into the graph from a4ua.nl.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "a4ua.nl"})-[: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.