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Hostname

erf.de

Last fetched

erf.de resolves to 3 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.

Nutrition Label

WHISPER CANON · erf.deRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/erf.de

Resolution chain

erf.de resolves to 3 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
104.26.0.175104.26.0.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
104.26.1.175104.26.0.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
172.67.71.244172.67.64.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

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Subdomains

Subdomain count is temporarily unavailable. Refresh in a moment to retry.

Web-graph footprint

Distinct hostnames that link to or from erf.de in the public web crawl.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

12 SPF mechanisms authorising senders for erf.de.

MechanismTarget
SPF_Aerf.de
SPF_INCLUDEmailgun.org
SPF_INCLUDEspf.emailsys.net
SPF_INCLUDEspf.protection.outlook.com
SPF_IP109.91.166.37
SPF_IP195.248.89.10
SPF_IP212.162.53.160
SPF_IP46.229.46.157
SPF_IP46.229.46.39
SPF_IP46.4.4.115
SPF_IP46.4.4.25
SPF_MXerf.de

Related pages

Pivot deeper into the graph from erf.de.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "erf.de"})-[: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.