Hostname
castle.cloud
Last fetched
castle.cloud resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:625 as the registrar.
Nutrition Label
Resolution chain
castle.cloud 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 |
|---|---|---|---|---|
| 104.21.19.174 | 104.21.16.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.187.5 | 172.67.176.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
- Registrar
- iana:625
- Organization
- cttc
- Contact emails
Subdomains
10 observed subdomains of castle.cloud.
Web-graph footprint
Distinct hostnames that link to or from castle.cloud in the public web crawl.
8 sites link to this hostname.
24 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
SPF policy
4 SPF mechanisms authorising senders for castle.cloud.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | _spf.mx.cloudflare.net |
| SPF_INCLUDE | servers.mcsv.net |
| SPF_IP | 84.88.61.134/32 |
Related pages
Pivot deeper into the graph from castle.cloud.
- IP · 104.21.19.174
- ASN · AS13335CLOUDFLARENET - Cloudflare, Inc.
- Registrar · iana:625
- Country · CA
- Email · pol.henarejos@cttc.es
- TLD · .cloud
- Browse hostnames · ca…
- 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: "castle.cloud"})-[: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.