Skip to content

Hostname

s4.network

Last fetched

s4.network resolves to 1 IPv4 address operated by AS24940 in DE. WHOIS lists iana:269 as the registrar.

Nutrition Label

WHISPER CANON · s4.networkRouting diversity1.5/10Peering density7.9/10MOAS conflict✓ noneThreat-feed listings8.0/10WHOIS transparency10.0/10Resolver footprint4.0/10canon.whisper.security/host/s4.network

Resolution chain

s4.network resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
46.4.74.11546.4.0.0/16AS24940—DE

WHOIS identity

Registrar
iana:269
Organization
markus therre
Contact emails

Subdomains

3 observed subdomains of s4.network.

Subdomain
mail.s4.network
www.s4.network
webmail.s4.network

Web-graph footprint

Distinct hostnames that link to or from s4.network in the public web crawl.

452 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

2 SPF mechanisms authorising senders for s4.network.

MechanismTarget
SPF_As4.network
SPF_MXs4.network

Related pages

Pivot deeper into the graph from s4.network.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "s4.network"})-[: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.