Hostname
spweb.cz
Last fetched
spweb.cz resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:reg-gransy as the registrar.
Nutrition Label
Resolution chain
spweb.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 |
|---|---|---|---|---|
| 104.21.15.67 | 104.21.0.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.161.231 | 172.67.160.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
- Registrar
- registrar:reg-gransy
- Organization
- svatoslav pancocha
- Contact emails
Subdomains
29 observed subdomains of spweb.cz.
Showing 19 of 29. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from spweb.cz in the public web crawl.
260 sites link to this hostname.
21 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 spweb.cz.
| Mechanism | Target |
|---|---|
| SPF_IP | 2a00:1ed0:150:0:0:0:9:0 |
| SPF_IP | 93.185.97.9 |
Related pages
Pivot deeper into the graph from spweb.cz.
- IP · 104.21.15.67
- ASN · AS13335CLOUDFLARENET - Cloudflare, Inc.
- Registrar · registrar:reg-gransy
- Country · CA
- Email · svata.posta@gmail.com
- TLD · .cz
- Browse hostnames · sp…
- 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: "spweb.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.