Hostname

rra.cz

Last fetched Thu, 06 Aug 2026 17:42:20 GMT

rra.cz resolves to 1 IPv4 address operated by ACTIVE24-AS - ACTIVE 24, s.r.o. in CZ. WHOIS lists registrar:reg-internet-cz as the registrar.

Nutrition Label

Resolution chain

rra.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
81.95.96.29	81.95.96.0/20	AS25234	ACTIVE24-AS - ACTIVE 24, s.r.o.	CZ

WHOIS identity

Registrar: registrar:reg-internet-cz
Organization: regionalni rozvojova agentura usteckeho kraje, a.s.
Contact emails: —

Subdomains

1 observed subdomain of rra.cz.

Subdomain
www.rra.cz

Web-graph footprint

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

16 sites link to this hostname.

13 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for rra.cz.

Mechanism	Target
SPF_MX	rra.cz

Pivot deeper into the graph from rra.cz.

Cypher and MCP

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

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