Hostname

efv.cn

Last fetched Tue, 07 Jul 2026 21:25:26 GMT

efv.cn resolves to 1 IPv4 address operated by AS38283 in CN. WHOIS lists registrar:成都西维数码科技有限公司 as the registrar.

Nutrition Label

Resolution chain

efv.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
211.149.140.133	211.149.128.0/20	AS38283	—	CN

WHOIS identity

Registrar

registrar:成都西维数码科技有限公司

Organization

—

Contact emails

Subdomains

6 observed subdomains of efv.cn.

Subdomain
bm.efv.cn
cdn.efv.cn
net.efv.cn
oa.efv.cn
v.efv.cn
www.efv.cn

Web-graph footprint

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

25 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

mxn.mxhichina.com

SPF policy

1 SPF mechanism authorising senders for efv.cn.

Mechanism	Target
SPF_INCLUDE	spf.qiye.aliyun.com

Pivot deeper into the graph from efv.cn.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "efv.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.