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Hostname

penumbra.org

Last fetched

penumbra.org resolves to 1 IPv4 address operated by GRIDFURY-AS - GridFury, LLC in US. WHOIS lists iana:303 as the registrar.

Nutrition Label

WHISPER CANON · penumbra.orgRouting diversity1.5/10Peering density2.8/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint8.0/10canon.whisper.security/host/penumbra.org

Resolution chain

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

IPPrefixASNOperatorCountry
208.94.117.15208.94.116.0/22AS40630GRIDFURY-AS - GridFury, LLCUS

WHOIS identity

Registrar
iana:303
Organization
c/o respectmyprivacy,
Contact emails

Subdomains

1 observed subdomain of penumbra.org.

Subdomain
www.penumbra.org

Web-graph footprint

Distinct hostnames that link to or from penumbra.org in the public web crawl.

7 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

2 SPF mechanisms authorising senders for penumbra.org.

MechanismTarget
SPF_INCLUDE_spf.protonmail.ch
SPF_MXpenumbra.org

Related pages

Pivot deeper into the graph from penumbra.org.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "penumbra.org"})-[: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.