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Hostname

fern.org

Last fetched

fern.org resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:131 as the registrar.

Nutrition Label

WHISPER CANON · fern.orgRouting diversity2.4/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings6.8/10WHOIS transparency10.0/10Resolver footprint3.2/10canon.whisper.security/host/fern.org

Resolution chain

fern.org resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
104.21.45.71104.21.32.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
172.67.211.16172.67.208.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

Registrar
iana:131
Organization
fern
Contact emails

Subdomains

5 observed subdomains of fern.org.

Subdomain
annualreport2018.fern.org
cloud.fern.org
new.fern.org
staging.fern.org
www.fern.org

Web-graph footprint

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

850 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

10 SPF mechanisms authorising senders for fern.org.

MechanismTarget
SPF_Afern.org
SPF_INCLUDE4375068.spf08.hubspotemail.net
SPF_INCLUDEspf.protection.outlook.com
SPF_IP195.238.0.0/19
SPF_IP208.76.243.213
SPF_IP208.76.243.50
SPF_IP213.78.219.136/30
SPF_IP37.220.108.128/25
SPF_IP86.53.0.160/27
SPF_MXfern.org

Related pages

Pivot deeper into the graph from fern.org.

Cypher and MCP

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

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