Hostname
21cn.com
Last fetched
21cn.com resolves to 1 IPv4 address operated by AS4134 in CN. WHOIS lists iana:4163 as the registrar.
Nutrition Label
Resolution chain
21cn.com resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 114.217.37.13 | 114.217.32.0/21 | AS4134 | — | CN |
WHOIS identity
- Registrar
- iana:4163
- Organization
- 21cn corporation limited domainmanage@21cn.com +86.2085265827 21cn corporation
- Contact emails
Subdomains
234 observed subdomains of 21cn.com.
Showing 25 of 234. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from 21cn.com in the public web crawl.
208 sites link to this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
7 SPF mechanisms authorising senders for 21cn.com.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | mail-spf.21cn.com |
| SPF_INCLUDE | mail01-spf.21cn.com |
| SPF_INCLUDE | mail02-spf.21cn.com |
| SPF_IP | 52.74.103.30 |
| SPF_IP | 52.74.147.196 |
| SPF_IP | 52.8.239.192 |
| SPF_IP | 52.8.52.154 |
Related pages
Pivot deeper into the graph from 21cn.com.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "21cn.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.