Hostname
alfbook.cz
Last fetched
alfbook.cz resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.
Nutrition Label
Resolution chain
alfbook.cz resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 104.21.84.239 | 104.21.80.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.198.228 | 172.67.192.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
No WHOIS records are currently associated with alfbook.cz in WhisperGraph.
Subdomains
1 observed subdomain of alfbook.cz.
| Subdomain |
|---|
| www.alfbook.cz |
Web-graph footprint
Distinct hostnames that link to or from alfbook.cz in the public web crawl.
10 sites link to this hostname.
1 site linked to from this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
5 SPF mechanisms authorising senders for alfbook.cz.
| Mechanism | Target |
|---|---|
| SPF_A | alfbook.cz |
| SPF_INCLUDE | 46.28.106.172 |
| SPF_INCLUDE | _spf.we.wedos.net |
| SPF_INCLUDE | hc1-wd356.wedos.net |
| SPF_MX | alfbook.cz |
Related pages
Pivot deeper into the graph from alfbook.cz.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "alfbook.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.