`linkok.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=2034590408

Same first word

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DNS History

5 records (3 active, 2 former)

●NSdns1.hichina.com2026-03-08 → 2026-03-26 · 3 obs

○ 2018-06-13 20:49:22
● 2026-03-08 13:22:38
● 2026-03-26 18:29:48

●NSdns2.hichina.com2026-03-08 → 2026-03-26 · 3 obs

○ 2018-06-13 20:49:22
● 2026-03-08 13:22:38
● 2026-03-26 18:29:48

○NSf1g1ns1.dnspod.net2018-06-13 → 2018-06-13 · 3 obs

● 2018-06-13 20:49:22
○ 2026-03-08 13:22:38
○ 2026-03-26 18:29:48

○A118.193.157.1612018-06-13 → 2018-06-13 · 3 obs

● 2018-06-13 20:49:22
○ 2026-03-08 13:22:38
○ 2026-03-26 18:29:48

●CNAMEoverdue.aliyun.com2026-03-08 → 2026-03-26 · 2 obs

● 2026-03-08 13:22:38
● 2026-03-26 18:29:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
linkok.cn	dns1.hichina.com, dns2.hichina.com	-

✅ Authoritative Response

Server:39.96.153.54

NS records: dns1.hichina.com, dns2.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linkok.cn (unsigned zone)

⏱️ Timing

Total: 3624ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns1.hichina.com, dns2.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns1.hichina.com hostmaster.hichina.com`

Analysis

IP Addresses

linkok.cn points to a single IP: 170.33.12.185.

Other host names, for instance qgms.cn, fgrj.cn, tdjm.cn, wwnx.cn and buchaoxi.com share IP numbers with linkok.cn.

linkok.cn - robtex.com

linkok.cn

cn