Hostname
nfx.cz
Last fetched
nfx.cz resolves to 1 IPv4 address operated by AS8251 in CZ.
Nutrition Label
Resolution chain
nfx.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 |
|---|---|---|---|---|
| 81.201.48.120 | 81.201.48.0/21 | AS8251 | — | CZ |
WHOIS identity
No WHOIS records are currently associated with nfx.cz in WhisperGraph.
Subdomains
26 observed subdomains of nfx.cz.
Showing 25 of 26. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from nfx.cz in the public web crawl.
29 sites link to this hostname.
27 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
6 SPF mechanisms authorising senders for nfx.cz.
| Mechanism | Target |
|---|---|
| SPF_A | blotto.klfree.net |
| SPF_A | mail.klfree.net |
| SPF_A | mail.pilsfree.net |
| SPF_A | smtp.klfree.net |
| SPF_INCLUDE | _spf.google.com |
| SPF_MX | nfx.cz |
Related pages
Pivot deeper into the graph from nfx.cz.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "nfx.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.