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Hostname

b21.app

Last fetched

b21.app has no current public IPv4 resolution in WhisperGraph; WHOIS lists iana:1861 as the registrar.

Nutrition Label

WHISPER CANON · b21.appRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/b21.app

Resolution chain

b21.app has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.

WHOIS identity

Registrar
iana:1861
Organization
domains by proxy,
Contact emails
—

Web-graph footprint

Distinct hostnames that link to or from b21.app in the public web crawl.

Sample inbound links

Threat posture

History

Related pages

Pivot deeper into the graph from b21.app.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "b21.app"})-[: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.