Hostname

valar.cz

Last fetched Wed, 26 Aug 2026 10:54:28 GMT

valar.cz resolves to 1 IPv4 address operated by MASTER-AS - MasterDC s.r.o. in CZ. WHOIS lists registrar:reg-webglobe as the registrar.

Nutrition Label

Resolution chain

valar.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
89.185.247.138	89.185.224.0/19	AS24971	MASTER-AS - MasterDC s.r.o.	CZ

WHOIS identity

Registrar: registrar:reg-webglobe
Organization: nocc, a.s.
Contact emails: —

Subdomains

2 observed subdomains of valar.cz.

Subdomain
mail.valar.cz
www.valar.cz

Web-graph footprint

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

5 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail.nocc.cz

SPF policy

2 SPF mechanisms authorising senders for valar.cz.

Mechanism	Target
SPF_A	valar.cz
SPF_MX	valar.cz

Pivot deeper into the graph from valar.cz.

Cypher and MCP

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

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