`fc-api.51zidan.com`

	CNAME	`1642444012506875.cn-shanghai.fc.aliyuncs.com`
	CNAME	`cn-shanghai-fc-sh-waitan.fc.aliyuncs.com`
	DNSSEC	⚠️ Not signed
	A	139.224.227.189^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}

`51zidan.com`

	DNSSEC	⚠️ Not signed
	A	101.132.186.86^{🇨🇳 Alibaba-Cloud101.132.0.0/16 Alibaba (US) Technology Co., Ltd.}
	NS	`vip3.alidns.com` ⭐
	NS	`vip4.alidns.com`
	MX	`mxn.mxhichina.com` ⭐
	MX	`mxw.mxhichina.com`⁽¹⁰⁾
	TXT	`v=spf1 include:spf.mxhichina.com -all`
	SOA	`vip3.alidns.com`hostmaster@hichina.com 2026-06-05 #11

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DNS History

1 record (1 active, 0 former)

●CNAME1642444012506875.cn-shanghai.fc.aliyuncs.com2026-07-14 → 2026-08-02 · 2 obs

● 2026-07-14 03:53:58
● 2026-08-02 00:57:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
51zidan.com	vip3.alidns.com, vip4.alidns.com	22 records

✅ Authoritative Response

Server:121.40.6.163

NS records: vip3.alidns.com, vip4.alidns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51zidan.com (unsigned zone)

⏱️ Timing

Total: 483ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`1642444012506875.cn-shanghai.fc.aliyuncs`

📌 Glue Records Collected

Total: 22

Out-of-bailiwick: 22 (vip3.alidns.com, vip3.alidns.com, vip3.alidns.com...)

Analysis

IP Addresses

fc-api.51zidan.com directs to one IP number, which is 139.224.227.189.

Other host names share IP numbers with fc-api.51zidan.com; cn-shanghai-fc-sh-waitan.fc.aliyuncs.com is one such example.

fc-api.51zidan.com - robtex.com