Hostname

ostc.com.cn

Last fetched Wed, 22 Jul 2026 02:24:47 GMT

ostc.com.cn resolves to 1 IPv4 address operated by AS37963 in CN. WHOIS lists registrar:阿里云计算有限公司（万网） as the registrar.

Nutrition Label

Resolution chain

ostc.com.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
39.98.249.72	39.96.0.0/14	AS37963	—	CN
39.98.249.72	39.96.0.0/14	AS37963	—	CN

WHOIS identity

Registrar

registrar:阿里云计算有限公司（万网）

Organization

北京五洲东方科技发展有限公司

Contact emails

ostc_it@ostc.com.cn

Subdomains

12 observed subdomains of ostc.com.cn.

Subdomain
baojia.ostc.com.cn
ewormhole.ostc.com.cn
jkcrm.ostc.com.cn
online.ostc.com.cn
rtcrm.ostc.com.cn
sh.ostc.com.cn
shop.ostc.com.cn
www.ostc.com.cn

Showing 8 of 12. View all subdomains →

Web-graph footprint

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

52 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for ostc.com.cn.

Mechanism	Target
SPF_INCLUDE	spf.mxhichina.com

Pivot deeper into the graph from ostc.com.cn.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "ostc.com.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.