Hostname
asm.cz
Last fetched
asm.cz resolves to 3 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:reg-zoner as the registrar.
Nutrition Label
Resolution chain
asm.cz resolves to 3 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 104.21.72.11 | 104.21.64.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.173.105 | 172.67.160.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 81.19.8.49 | 81.19.0.0/20 | AS24641 | — | CZ |
| 81.19.8.49 | 81.19.0.0/20 | AS24641 | — | CZ |
WHOIS identity
- Registrar
- registrar:reg-zoner
- Organization
- petr bečička
- Contact emails
- —
Subdomains
6 observed subdomains of asm.cz.
Web-graph footprint
Distinct hostnames that link to or from asm.cz in the public web crawl.
44 sites link to this hostname.
Threat posture
History
Mail and authentication
MX records
SPF policy
5 SPF mechanisms authorising senders for asm.cz.
| Mechanism | Target |
|---|---|
| SPF_A | mail.100mega.cz |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 77.240.176.58 |
| SPF_IP | 81.19.8.49 |
| SPF_MX | asm.cz |
Related pages
Pivot deeper into the graph from asm.cz.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "asm.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.