d20.cz

Nutrition Label

Resolution chain

d20.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-one

Organization

petr mazák

Contact emails

—

Subdomains

53 observed subdomains of d20.cz.

Web-graph footprint

Distinct hostnames that link to or from d20.cz in the public web crawl.

68 sites link to this hostname.

Threat posture

History

Mail and authentication

Related pages

Pivot deeper into the graph from d20.cz.

• Registrar · registrar:reg-one
• TLD · .cz
• Browse hostnames · d2…
• Glossary · What is a hostname?
• Whisper Internet Directory — home
• Live MOAS conflicts feed
• Threat feed · Spamhaus DROP
• United States internet infrastructure

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "d20.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.