Hostname
csa.cz
Last fetched
csa.cz resolves to 3 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:reg-active24 as the registrar.
Nutrition Label
Resolution chain
csa.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 |
|---|---|---|---|---|
| 104.26.12.201 | 104.26.0.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 104.26.13.201 | 104.26.0.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.75.122 | 172.67.64.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
- Registrar
- registrar:reg-active24
- Organization
- ceske aerolinie a. s.
- Contact emails
Subdomains
75 observed subdomains of csa.cz.
Showing 25 of 75. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from csa.cz in the public web crawl.
1,724 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
11 SPF mechanisms authorising senders for csa.cz.
| Mechanism | Target |
|---|---|
| SPF_A | gil.aag-server.cz |
| SPF_A | levi-vm9.intranet.aag.cz |
| SPF_A | mail1.ebiss.cz |
| SPF_INCLUDE | _spf.aarongroup.net |
| SPF_INCLUDE | _spf.atlassian.net |
| SPF_INCLUDE | sendgrid.net |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 13.81.52.220 |
| SPF_IP | 171.17.133.140/32 |
| SPF_IP | 40.113.100.41 |
| SPF_IP | 82.150.225.79/32 |
Related pages
Pivot deeper into the graph from csa.cz.
- IP · 104.26.12.201
- ASN · AS13335CLOUDFLARENET - Cloudflare, Inc.
- Registrar · registrar:reg-active24
- Country · CA
- Email · domain.admin@csa.cz
- TLD · .cz
- Browse hostnames · cs…
- 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: "csa.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.