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Hostname

pb33f.io

Last fetched

pb33f.io resolves to 4 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in US. WHOIS lists iana:269 as the registrar.

Nutrition Label

WHISPER CANON · pb33f.ioRouting diversity1.5/10Peering density9.4/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint4.6/10canon.whisper.security/host/pb33f.io

Resolution chain

pb33f.io resolves to 4 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
99.84.234.1599.84.232.0/22AS16509AMAZON-02 - Amazon.com, Inc.US
99.84.234.2299.84.232.0/22AS16509AMAZON-02 - Amazon.com, Inc.US
99.84.234.4899.84.232.0/22AS16509AMAZON-02 - Amazon.com, Inc.US
99.84.234.5199.84.232.0/22AS16509AMAZON-02 - Amazon.com, Inc.US

WHOIS identity

Registrar
iana:269
Organization
c/o whoisproxy.com
Contact emails
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Subdomains

3 observed subdomains of pb33f.io.

Subdomain
api.pb33f.io
doctor.pb33f.io
playground.pb33f.io

Web-graph footprint

Distinct hostnames that link to or from pb33f.io in the public web crawl.

20 sites link to this hostname.

39 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for pb33f.io.

MechanismTarget
SPF_INCLUDE_spf.google.com
SPF_INCLUDE_spf.mailersend.net
SPF_INCLUDE_spf.mlsend.com

Related pages

Pivot deeper into the graph from pb33f.io.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "pb33f.io"})-[: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.