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Hostname

a4.fr

Last fetched

a4.fr resolves to 1 IPv4 address operated by AS20986 in FR. WHOIS lists registrar:ovh as the registrar.

Nutrition Label

WHISPER CANON · a4.frRouting diversity1.5/10Peering density2.4/10MOAS conflict✓ noneThreat-feed listings6.8/10WHOIS transparency10.0/10Resolver footprint4.6/10canon.whisper.security/host/a4.fr

Resolution chain

a4.fr resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
91.236.153.23591.236.153.0/24AS20986—FR

WHOIS identity

Registrar
registrar:ovh
Organization
sarl a4
Contact emails

Subdomains

2 observed subdomains of a4.fr.

Subdomain
catalogue.a4.fr
www.a4.fr

Web-graph footprint

Distinct hostnames that link to or from a4.fr in the public web crawl.

94 sites link to this hostname.

106 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

2 SPF mechanisms authorising senders for a4.fr.

MechanismTarget
SPF_INCLUDEspf.protection.outlook.com
SPF_IP91.236.153.235

Related pages

Pivot deeper into the graph from a4.fr.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "a4.fr"})-[: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.