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Hostname

alter.cz

Last fetched

alter.cz resolves to 1 IPv4 address operated by AS29208 in CZ. WHOIS lists registrar:reg-webglobe as the registrar.

Nutrition Label

WHISPER CANON · alter.czRouting diversity1.5/10Peering density7.9/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint3.2/10canon.whisper.security/host/alter.cz

Resolution chain

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

IPPrefixASNOperatorCountry
82.100.26.2982.100.0.0/18AS29208—CZ

WHOIS identity

Registrar
registrar:reg-webglobe
Organization
nakladatelství alter, s.r.o.
Contact emails
—

Subdomains

11 observed subdomains of alter.cz.

Subdomain
eshop.alter.cz
knihovna.alter.cz
knihovnatest.alter.cz
knihovnatest2.alter.cz
mail.alter.cz
remote.alter.cz
test.alter.cz
vpn.alter.cz
webtest.alter.cz
www.alter.cz

Showing 10 of 11. View all subdomains →

Web-graph footprint

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

23 sites link to this hostname.

5 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

7 SPF mechanisms authorising senders for alter.cz.

MechanismTarget
SPF_Amassmail.myzone.cloud
SPF_INCLUDEspf.protection.outlook.com
SPF_IP195.122.198.186
SPF_IP82.100.26.103
SPF_IP82.100.26.27
SPF_IP82.100.26.73
SPF_IP95.80.222.195

Related pages

Pivot deeper into the graph from alter.cz.

Cypher and MCP

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

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