Hostname
castr.com
Last fetched
castr.com resolves to 3 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:1068 as the registrar.
Nutrition Label
Resolution chain
castr.com 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 |
|---|---|---|---|---|
| 104.18.6.210 | 104.18.0.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 104.18.7.210 | 104.18.0.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 146.75.118.133 | 146.75.116.0/22 | AS54113 | MACST-SV4 - MacStadium, Inc. | DE |
WHOIS identity
- Registrar
- iana:1068
- Organization
- barth picq
- Contact emails
Subdomains
25 observed subdomains of castr.com.
Web-graph footprint
Distinct hostnames that link to or from castr.com in the public web crawl.
504 sites link to this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
5 SPF mechanisms authorising senders for castr.com.
| Mechanism | Target |
|---|---|
| SPF_A | castr.com |
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | sendgrid.net |
| SPF_INCLUDE | spf.mtasv.net |
| SPF_MX | castr.com |
Related pages
Pivot deeper into the graph from castr.com.
- IP · 104.18.6.210
- ASN · AS13335CLOUDFLARENET - Cloudflare, Inc.
- Registrar · iana:1068
- Country · CA
- Email · 1e2656defdd54f87ad9b5717dc03086d.protect@withheldforprivacy.com
- TLD · .com
- 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: "castr.com"})-[: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.