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Hostname

4com.cz

Last fetched

4com.cz resolves to 1 IPv4 address operated by AS25248 in CZ. WHOIS lists registrar:reg-wedos as the registrar.

Nutrition Label

WHISPER CANON · 4com.czRouting diversity1.5/10Peering density6.2/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint8.3/10canon.whisper.security/host/4com.cz

Resolution chain

4com.cz resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
84.244.104.684.244.64.0/18AS25248—CZ

WHOIS identity

Registrar
registrar:reg-wedos
Organization
4com.tools s.r.o.
Contact emails
—

Subdomains

13 observed subdomains of 4com.cz.

Subdomain
_spf.4com.cz
dn.4com.cz
hest.4com.cz
is.4com.cz
iwa.4com.cz
mail.4com.cz
noc.4com.cz
ns.4com.cz
park.4com.cz
sit.4com.cz
smtp.4com.cz
webs.4com.cz
www.4com.cz

Web-graph footprint

Distinct hostnames that link to or from 4com.cz in the public web crawl.

8 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

8 SPF mechanisms authorising senders for 4com.cz.

MechanismTarget
SPF_IP84.244.104.10
SPF_IP84.244.104.11
SPF_IP84.244.104.222
SPF_IP84.244.104.3
SPF_IP84.244.104.5
SPF_IP84.244.104.69
SPF_IP84.244.104.7
SPF_IP84.244.104.8

Related pages

Pivot deeper into the graph from 4com.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "4com.cz"})-[: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.