Hostname

4.cn

Last fetched Thu, 21 May 2026 23:20:07 GMT

4.cn resolves to 1 IPv4 address operated by AS_STADTWERKE_DORFEN in CN. WHOIS lists registrar:厦门易名科技股份有限公司 as the registrar.

Nutrition Label

Resolution chain

4.cn 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
69.234.239.50	69.234.192.0/18	AS135629	AS_STADTWERKE_DORFEN	CN

WHOIS identity

Registrar

registrar:厦门易名科技股份有限公司

Organization

???????????

Contact emails

Subdomains

28 observed subdomains of 4.cn.

Subdomain
123.4.cn
whois.4.cn
top.4.cn
park.4.cn
ns8.4.cn
ns7.4.cn
ns6.4.cn
ns5.4.cn
ns4.4.cn
ns3.4.cn
ns2.4.cn
ns1.4.cn
n2.4.cn
n1.4.cn
mta-sts.4.cn
mmm.4.cn
mail.4.cn
m.4.cn
img.4.cn
dx.4.cn
ds2.4.cn
ds1.4.cn
dns2.4.cn
dns1.4.cn
admin.4.cn

Showing 25 of 28. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from 4.cn in the public web crawl.

55,147 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail.tutanota.de

SPF policy

3 SPF mechanisms authorising senders for 4.cn.

Mechanism	Target
SPF_INCLUDE	mailgun.org
SPF_INCLUDE	spf.tutanota.de
SPF_INCLUDE	spf1.dm.aliyun.com

Pivot deeper into the graph from 4.cn.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "4.cn"})-[: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.