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Hostname

jerf.org

Last fetched

jerf.org resolves to 1 IPv4 address operated by AS63949 in US. WHOIS lists iana:886 as the registrar.

Nutrition Label

WHISPER CANON · jerf.orgRouting diversity1.5/10Peering density5.2/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint5.2/10canon.whisper.security/host/jerf.org

Resolution chain

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

IPPrefixASNOperatorCountry
198.58.100.206198.59.48.0/24AS63949—US

WHOIS identity

Registrar
iana:886
Organization
domain privacy service fbo registrant.
Contact emails

Subdomains

5 observed subdomains of jerf.org.

Subdomain
heather.jerf.org
mail.jerf.org
nextcloud.jerf.org
ns1.jerf.org
www.jerf.org

Web-graph footprint

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

117 sites link to this hostname.

148 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

4 SPF mechanisms authorising senders for jerf.org.

MechanismTarget
SPF_Ajerf.org
SPF_Amail.jerf.org
SPF_INCLUDEcomcast.net
SPF_MXjerf.org

Related pages

Pivot deeper into the graph from jerf.org.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "jerf.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.