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Hostname

rb.cz

Last fetched

rb.cz resolves to 2 IPv4 addresses operated by AS198519 in CZ. WHOIS lists registrar:reg-internet-cz as the registrar.

Nutrition Label

WHISPER CANON · rb.czRouting diversity2.4/10Peering density1.2/10MOAS conflict✓ noneThreat-feed listings6.8/10WHOIS transparency6.7/10Resolver footprint4.0/10canon.whisper.security/host/rb.cz

Resolution chain

rb.cz resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
185.250.72.130185.250.72.0/24AS198519—CZ
185.250.73.130185.250.73.0/24AS198519—CZ

WHOIS identity

Registrar
registrar:reg-internet-cz
Organization
raiffeisenbank a.s.
Contact emails

Subdomains

141 observed subdomains of rb.cz.

Subdomain
0.rb.cz
22www.rb.cz
6.rb.cz
ai.rb.cz
api.rb.cz
api1.rb.cz
app-dwarf.rb.cz
app-lister.rb.cz
app-rimmer.rb.cz
apsweb-1.rb.cz
apsweb-2.rb.cz
artifactory.rb.cz
aws.rb.cz
beda.rb.cz
bezpecneplatby.rb.cz
blade.rb.cz
bordergw.rb.cz
ca.rb.cz
chat.rb.cz
ctsappl1.rb.cz
dev-api.rb.cz
developer.rb.cz
developers.rb.cz
dwarf.rb.cz
ebt.rb.cz

Showing 25 of 141. View all subdomains →

Web-graph footprint

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

1,193 sites link to this hostname.

201 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

22 SPF mechanisms authorising senders for rb.cz.

MechanismTarget
SPF_INCLUDEspf.protection.outlook.com
SPF_IP18.185.207.145
SPF_IP185.250.72.23
SPF_IP185.250.73.19
SPF_IP3.121.187.196
SPF_IP3.127.181.81
SPF_IP3.66.248.99
SPF_IP3.74.55.255
SPF_IP35.158.173.137
SPF_IP62.168.6.149
SPF_IP62.168.6.253
SPF_IP62.168.7.100
SPF_IP62.168.7.109
SPF_IP62.168.7.111
SPF_IP62.168.7.193
SPF_IP62.168.7.20
SPF_IP82.99.162.232
SPF_IP82.99.163.197
SPF_IP82.99.163.199
SPF_IP82.99.163.206
SPF_IP82.99.163.207
SPF_IP82.99.163.210

Related pages

Pivot deeper into the graph from rb.cz.

Cypher and MCP

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

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