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Hostname

authentication.directory

Last fetched

authentication.directory resolves to 20 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in IE. WHOIS lists iana:81 as the registrar.

Nutrition Label

WHISPER CANON · authentication.directoryRouting diversity5.6/10Peering density9.5/10MOAS conflict✓ noneThreat-feed listings6.8/10WHOIS transparency10.0/10Resolver footprint4.6/10canon.whisper.security/host/authentication.directory

Resolution chain

authentication.directory resolves to 20 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
108.128.0.67108.128.0.0/13AS16509AMAZON-02 - Amazon.com, Inc.IE
18.202.62.17418.202.0.0/15AS16509AMAZON-02 - Amazon.com, Inc.IE
34.248.197.1634.248.0.0/13AS16509AMAZON-02 - Amazon.com, Inc.IE
46.51.193.8446.51.192.0/20AS16509AMAZON-02 - Amazon.com, Inc.IE
52.17.182.20352.16.0.0/15AS16509AMAZON-02 - Amazon.com, Inc.IE
52.17.183.8152.16.0.0/15AS16509AMAZON-02 - Amazon.com, Inc.IE
52.17.30.6952.16.0.0/15AS16509AMAZON-02 - Amazon.com, Inc.IE
52.19.143.7552.18.0.0/15AS16509AMAZON-02 - Amazon.com, Inc.IE
52.215.41.5552.208.0.0/13AS16509AMAZON-02 - Amazon.com, Inc.IE
52.31.52.13152.30.0.0/15AS16509AMAZON-02 - Amazon.com, Inc.IE
52.31.99.6152.30.0.0/15AS16509AMAZON-02 - Amazon.com, Inc.IE
52.49.107.9252.48.0.0/14AS16509AMAZON-02 - Amazon.com, Inc.IE
52.49.162.23752.48.0.0/14AS16509AMAZON-02 - Amazon.com, Inc.IE
52.49.4.6252.48.0.0/14AS16509AMAZON-02 - Amazon.com, Inc.IE
52.50.89.4752.48.0.0/14AS16509AMAZON-02 - Amazon.com, Inc.IE
54.155.149.8654.155.0.0/16AS16509AMAZON-02 - Amazon.com, Inc.IE
54.246.154.5854.246.128.0/17AS16509AMAZON-02 - Amazon.com, Inc.IE
63.32.70.2463.32.0.0/14AS16509AMAZON-02 - Amazon.com, Inc.IE
63.33.153.19263.32.0.0/14AS16509AMAZON-02 - Amazon.com, Inc.IE
52.17.6.1452.16.0.0/15AS16509AMAZON-02 - Amazon.com, Inc.IE

WHOIS identity

Registrar
iana:81
Organization
knowbe4
Contact emails

Subdomains

2 observed subdomains of authentication.directory.

Subdomain
user.authentication.directory
wildcard.authentication.directory

Threat posture

History

Mail and authentication

SPF policy

1 SPF mechanism authorising senders for authentication.directory.

MechanismTarget
SPF_INCLUDE_phishspf.knowbe4.com

Related pages

Pivot deeper into the graph from authentication.directory.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "authentication.directory"})-[: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.