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Hostname

securityheaders.io

Last fetched

securityheaders.io resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:1910 as the registrar.

Nutrition Label

WHISPER CANON · securityheaders.ioRouting diversity2.4/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings8.0/10WHOIS transparency3.3/10Resolver footprint8.0/10canon.whisper.security/host/securityheaders.io

Resolution chain

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

IPPrefixASNOperatorCountry
104.21.21.50104.21.16.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
172.67.196.107172.67.192.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

Registrar
iana:1910
Organization
probe.ly,
Contact emails
—

Subdomains

1 observed subdomain of securityheaders.io.

Subdomain
www.securityheaders.io

Web-graph footprint

Distinct hostnames that link to or from securityheaders.io in the public web crawl.

384 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for securityheaders.io.

MechanismTarget
SPF_INCLUDEspf.messagingengine.com

Related pages

Pivot deeper into the graph from securityheaders.io.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "securityheaders.io"})-[: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.