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Hostname

c4s.com

Last fetched

c4s.com resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:1052 as the registrar.

Nutrition Label

WHISPER CANON · c4s.comRouting diversity2.4/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings8.0/10WHOIS transparency10.0/10Resolver footprint3.2/10canon.whisper.security/host/c4s.com

Resolution chain

c4s.com resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
104.21.61.131104.21.48.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
172.67.210.138172.67.208.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

Registrar
iana:1052
Organization
moniker privacy services
Contact emails

Subdomains

2 observed subdomains of c4s.com.

Subdomain
wildcard.c4s.com
www.c4s.com

Web-graph footprint

Distinct hostnames that link to or from c4s.com in the public web crawl.

55 sites link to this hostname.

2 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for c4s.com.

MechanismTarget
SPF_Amx.intermarkproductions.com
SPF_INCLUDE_spf.google.com
SPF_MXintermarkproductions.com

Related pages

Pivot deeper into the graph from c4s.com.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "c4s.com"})-[: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.