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Hostname

format1.cz

Last fetched

format1.cz resolves to 1 IPv4 address operated by AS43541 in CZ. WHOIS lists registrar:reg-one as the registrar.

Nutrition Label

WHISPER CANON · format1.czRouting diversity1.5/10Peering density4.7/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint3.2/10canon.whisper.security/host/format1.cz

Resolution chain

format1.cz resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
217.16.184.152217.16.176.0/20AS43541—CZ

WHOIS identity

Registrar
registrar:reg-one
Organization
format 1 spol. s r.o.
Contact emails
—

Subdomains

3 observed subdomains of format1.cz.

Subdomain
admin.format1.cz
lh.format1.cz
www.format1.cz

Web-graph footprint

Distinct hostnames that link to or from format1.cz in the public web crawl.

42 sites link to this hostname.

36 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 format1.cz.

MechanismTarget
SPF_Aformat1.cz
SPF_INCLUDE_spf.google.com
SPF_MXformat1.cz

Related pages

Pivot deeper into the graph from format1.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "format1.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.