Hostname
cjf.cz
Last fetched
cjf.cz is a registered hostname under the .cz top-level domain. Live infrastructure data is temporarily unavailable; refresh in a moment.
Nutrition Label
Resolution chain
Resolution chain data is temporarily unavailable. Refresh in a moment to retry.
WHOIS identity
No WHOIS records are currently associated with cjf.cz in WhisperGraph.
Subdomains
7 observed subdomains of cjf.cz.
Web-graph footprint
Distinct hostnames that link to or from cjf.cz in the public web crawl.
129 sites link to this hostname.
160 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
2 SPF mechanisms authorising senders for cjf.cz.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | sparkpostmail.com |
| SPF_INCLUDE | spf.protection.outlook.com |
Related pages
Pivot deeper into the graph from cjf.cz.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "cjf.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 20Or query Whisper from your own LLM workflow via the Whisper MCP server.