`dmfz.cn`

	CNAME	`overdue.aliyun.com`
	DNSSEC	⚠️ Not signed
	A	170.33.12.185^{🇸🇬 Alibaba_Cloud_SEC170.33.12.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2035093895

Same first word

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Similar names

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DNS History

5 records (3 active, 2 former)

○NSdns1.iidns.com2017-04-10 → 2017-04-10 · 3 obs

● 2017-04-10 03:30:42
○ 2026-03-12 19:42:12
○ 2026-07-26 19:26:56

●NSdns17.hichina.com2026-03-12 → 2026-07-26 · 3 obs

○ 2017-04-10 03:30:42
● 2026-03-12 19:42:12
● 2026-07-26 19:26:56

●NSdns18.hichina.com2026-03-12 → 2026-07-26 · 3 obs

○ 2017-04-10 03:30:42
● 2026-03-12 19:42:12
● 2026-07-26 19:26:56

○A103.242.135.892017-04-10 → 2017-04-10 · 3 obs

● 2017-04-10 03:30:42
○ 2026-03-12 19:42:12
○ 2026-07-26 19:26:56

●CNAMEoverdue.aliyun.com2026-03-12 → 2026-07-26 · 4 obs

● 2026-03-12 19:42:12
● 2026-03-26 20:24:58
○ 2026-06-27 14:54:48
● 2026-07-26 19:26:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
dmfz.cn	dns17.hichina.com, dns18.hichina.com	-

✅ Authoritative Response

Server:139.224.142.100

NS records: dns17.hichina.com, dns18.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dmfz.cn (unsigned zone)

⏱️ Timing

Total: 1847ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns18.hichina.com, dns17.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns17.hichina.com hostmaster.hichina.com`

Analysis

IP Addresses

dmfz.cn has exactly one IP address — 170.33.12.185.

bc4399.com, dounao.com, lugu.com plus two other host names have IP numbers in common with dmfz.cn.

dmfz.cn - robtex.com

dmfz.cn

cn