Hostname

tbtech.cz

Last fetched Fri, 24 Jul 2026 13:57:25 GMT

tbtech.cz resolves to 1 IPv4 address operated by AS51167 in DE. WHOIS lists registrar:reg-gransy as the registrar.

Nutrition Label

Resolution chain

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

IP	Prefix	ASN	Operator	Country
95.111.252.78	95.111.252.0/23	AS51167	—	DE

WHOIS identity

Registrar: registrar:reg-gransy
Organization: tomáš brückner
Contact emails: —

Subdomains

11 observed subdomains of tbtech.cz.

Subdomain
admin.tbtech.cz
apn.tbtech.cz
contabo1.tbtech.cz
gitlab.tbtech.cz
imap.tbtech.cz
kube-lb.tbtech.cz
smtp.tbtech.cz
spf.tbtech.cz
srv1.tbtech.cz
webmail.tbtech.cz
www.tbtech.cz

Threat posture

History

Mail and authentication

MX records

mail.tmsb.eu

SPF policy

1 SPF mechanism authorising senders for tbtech.cz.

Mechanism	Target
SPF_INCLUDE	spf.tbtech.cz

Pivot deeper into the graph from tbtech.cz.

Cypher and MCP

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

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