Hostname

sfa.cn

Last fetched Thu, 04 Jun 2026 20:31:36 GMT

sfa.cn is a registered hostname under the .cn top-level domain. Live infrastructure data is temporarily unavailable; refresh in a moment.

Nutrition Label

Resolution chain

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WHOIS identity

Registrar

registrar:厦门市中资源网络服务有限公司

Organization

上海七叶树网络科技有限公司

Contact emails

Subdomains

2 observed subdomains of sfa.cn.

Subdomain
mail.sfa.cn
www.sfa.cn

Web-graph footprint

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

7 sites link to this hostname.

1 site linked to from this hostname.

Sample inbound links

Sample outbound links

count.26760.cn

Threat posture

History

Mail and authentication

MX records

mail.sfa.cn

SPF policy

2 SPF mechanisms authorising senders for sfa.cn.

Mechanism	Target
SPF_A	sfa.cn
SPF_MX	sfa.cn

Pivot deeper into the graph from sfa.cn.

Cypher and MCP

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

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