Hostname

3ctest.cn

Last fetched Thu, 21 May 2026 20:43:22 GMT

3ctest.cn resolves to 1 IPv4 address operated by ALIBABA-CN-NET Hangzhou Alibaba Advertising Co.,Ltd. in CN. WHOIS lists registrar:阿里云计算有限公司（万网） as the registrar.

Nutrition Label

Resolution chain

3ctest.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
121.41.81.49	121.40.0.0/15	AS37963	ALIBABA-CN-NET Hangzhou Alibaba Advertising Co.,Ltd.	CN

WHOIS identity

Registrar

registrar:阿里云计算有限公司（万网）

Organization

苏州泰思特电子科技有限公司

Contact emails

qian.huang@3ctest.cn

Subdomains

2 observed subdomains of 3ctest.cn.

Subdomain
mail.3ctest.cn
www.3ctest.cn

Web-graph footprint

Distinct hostnames that link to or from 3ctest.cn in the public web crawl.

13 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail.3ctest.cn

SPF policy

2 SPF mechanisms authorising senders for 3ctest.cn.

Mechanism	Target
SPF_IP	218.4.170.242
SPF_IP	218.4.170.244

Pivot deeper into the graph from 3ctest.cn.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "3ctest.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.