`ydwh.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=2035054208

Same first word

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DNS History

6 records (3 active, 3 former)

●NSdns7.hichina.com2015-05-30 → 2026-07-18 · 5 obs

● 2015-05-30 20:47:58
● 2017-01-01 05:34:56
○ 2017-11-26 05:02:08
● 2026-05-27 11:36:44
● 2026-07-18 04:16:48

●NSdns8.hichina.com2015-05-30 → 2026-07-18 · 5 obs

● 2015-05-30 20:47:58
● 2017-01-01 05:34:56
○ 2017-11-26 05:02:08
● 2026-05-27 11:36:44
● 2026-07-18 04:16:48

○A121.198.6.1812015-05-30 → 2015-10-21 · 4 obs

● 2015-05-30 20:47:58
● 2015-10-21 08:15:10
○ 2016-01-18 13:08:44
○ 2026-07-18 04:16:48

○A222.171.249.2082016-01-18 → 2016-04-25 · 5 obs

○ 2015-10-21 08:15:10
● 2016-01-18 13:08:44
● 2016-04-25 15:04:38
○ 2017-11-26 05:02:08
○ 2026-07-18 04:16:48

○CNAMEdcbb.cn2017-11-26 → 2017-11-26 · 3 obs

● 2017-11-26 05:02:08
○ 2026-05-27 11:36:44
○ 2026-07-18 04:16:48

●CNAMEoverdue.aliyun.com2026-05-27 → 2026-07-18 · 4 obs

○ 2017-11-26 05:02:08
● 2026-05-27 11:36:44
○ 2026-07-04 15:41:02
● 2026-07-18 04:16:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
ydwh.cn	dns7.hichina.com, dns8.hichina.com	-

✅ Authoritative Response

Server:39.96.153.54

NS records: dns7.hichina.com, dns8.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ydwh.cn (unsigned zone)

⏱️ Timing

Total: 3770ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns8.hichina.com, dns7.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns7.hichina.com hostmaster.hichina.com`

Analysis

IP Addresses

ydwh.cn directs to one IP number, which is 170.33.12.185.

Among the host names that share IP numbers with ydwh.cn are 5656hg.com, 1588hg.com, aci1.com and two others.

ydwh.cn - robtex.com

ydwh.cn

cn