Hostname

grund.cz

Last fetched Mon, 10 Aug 2026 12:27:22 GMT

grund.cz has no current public IPv4 resolution in WhisperGraph; WHOIS lists registrar:reg-internet-cz as the registrar.

Nutrition Label

Resolution chain

grund.cz has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.

WHOIS identity

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

Subdomains

6 observed subdomains of grund.cz.

Subdomain
en.grund.cz
fw.grund.cz
mail.grund.cz
remote.grund.cz
test.grund.cz
www.grund.cz

Web-graph footprint

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

54 sites link to this hostname.

1 site linked to from this hostname.

Sample inbound links

Sample outbound links

grundhome.cz

Threat posture

History

Mail and authentication

MX records

grund-cz.mail.protection.outlook.com

SPF policy

1 SPF mechanism authorising senders for grund.cz.

Mechanism	Target
SPF_INCLUDE	spf.protection.outlook.com

Pivot deeper into the graph from grund.cz.

Cypher and MCP

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

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