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Hostname

21cnsj.com

Last fetched

21cnsj.com resolves to 1 IPv4 address operated by AS37963 in CN. WHOIS lists iana:1556 as the registrar.

Nutrition Label

WHISPER CANON · 21cnsj.comRouting diversity1.5/10Peering density5.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint5.6/10canon.whisper.security/host/21cnsj.com

Resolution chain

21cnsj.com resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
139.129.48.238139.129.0.0/17AS37963—CN

WHOIS identity

Registrar
iana:1556
Organization
junrong li
Contact emails

Subdomains

3 observed subdomains of 21cnsj.com.

Subdomain
app.21cnsj.com
xinfeiling.21cnsj.com
www.21cnsj.com

Web-graph footprint

Distinct hostnames that link to or from 21cnsj.com in the public web crawl.

72 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for 21cnsj.com.

MechanismTarget
SPF_INCLUDEspf.mail.qq.com

Related pages

Pivot deeper into the graph from 21cnsj.com.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "21cnsj.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 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.