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Hostname

usef.org

Last fetched

usef.org resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.

Nutrition Label

WHISPER CANON · usef.orgRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/usef.org

Resolution chain

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

IPPrefixASNOperatorCountry
104.18.8.231104.18.0.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
104.18.9.231104.18.0.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

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Subdomains

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Web-graph footprint

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

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

6 SPF mechanisms authorising senders for usef.org.

MechanismTarget
SPF_EXISTS%{i}.spf.hc5400-24.iphmx.com
SPF_INCLUDEspf.protection.outlook.com
SPF_IP139.138.35.88
SPF_IP139.138.59.212
SPF_IP216.170.20.135
SPF_IP216.170.20.137

Related pages

Pivot deeper into the graph from usef.org.

Cypher and MCP

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

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