`nckj.com`

	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}

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1783237801

Same first word

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DNS History

14 records (3 active, 11 former)

●NSdns31.hichina.com2026-06-20 → 2026-07-05 · 3 obs

○ 2018-10-11 15:17:00
● 2026-06-20 09:35:34
● 2026-07-05 08:06:02

●NSdns32.hichina.com2026-06-20 → 2026-07-05 · 3 obs

○ 2018-10-11 15:17:00
● 2026-06-20 09:35:34
● 2026-07-05 08:06:02

○NSns1.cnolnic.com2017-08-26 → 2018-10-11 · 5 obs

○ 2017-07-16 06:41:26
● 2017-08-26 13:38:02
● 2018-10-11 15:17:00
○ 2026-06-20 09:35:34
○ 2026-07-05 08:06:02

○NSns13.xincache.com2015-08-22 → 2016-09-26 · 4 obs

● 2015-08-22 15:33:34
● 2016-09-26 14:32:20
○ 2016-11-19 07:00:54
○ 2026-07-05 08:06:02

○NSns14.xincache.com2015-08-22 → 2016-09-26 · 4 obs

● 2015-08-22 15:33:34
● 2016-09-26 14:32:20
○ 2016-11-19 07:00:54
○ 2026-07-05 08:06:02

○NSns19.xincache.com2016-11-19 → 2017-07-16 · 5 obs

○ 2016-09-26 14:32:20
● 2016-11-19 07:00:54
● 2017-07-16 06:41:26
○ 2017-08-26 13:38:02
○ 2026-07-05 08:06:02

○NSns2.cnolnic.com2017-08-26 → 2018-10-11 · 5 obs

○ 2017-07-16 06:41:26
● 2017-08-26 13:38:02
● 2018-10-11 15:17:00
○ 2026-06-20 09:35:34
○ 2026-07-05 08:06:02

○NSns20.xincache.com2016-11-19 → 2017-07-16 · 5 obs

○ 2016-09-26 14:32:20
● 2016-11-19 07:00:54
● 2017-07-16 06:41:26
○ 2017-08-26 13:38:02
○ 2026-07-05 08:06:02

○MXmail.nckj.com2015-08-22 → 2017-07-16 · 4 obs

● 2015-08-22 15:33:34
● 2017-07-16 06:41:26
○ 2017-08-26 13:38:02
○ 2026-07-05 08:06:02

○A119.28.59.512017-04-25 → 2018-10-11 · 5 obs

○ 2016-11-24 08:16:30
● 2017-04-25 21:08:30
● 2018-10-11 15:17:00
○ 2026-06-20 09:35:34
○ 2026-07-05 08:06:02

○A139.219.139.2072015-09-05 → 2015-11-01 · 5 obs

○ 2015-08-22 15:33:34
● 2015-09-05 21:27:10
● 2015-11-01 20:59:22
○ 2015-11-05 12:27:18
○ 2026-07-05 08:06:02

○A139.219.142.1462015-11-05 → 2016-11-24 · 5 obs

○ 2015-11-01 20:59:22
● 2015-11-05 12:27:18
● 2016-11-24 08:16:30
○ 2017-04-25 21:08:30
○ 2026-07-05 08:06:02

○A218.5.79.402015-08-22 → 2015-08-22 · 3 obs

● 2015-08-22 15:33:34
○ 2015-09-05 21:27:10
○ 2026-07-05 08:06:02

●CNAMEoverdue.aliyun.com2026-06-20 → 2026-07-05 · 2 obs

● 2026-06-20 09:35:34
● 2026-07-05 08:06:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
nckj.com	dns31.hichina.com, dns32.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.37

NS records: dns31.hichina.com, dns32.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nckj.com (unsigned zone)

⏱️ Timing

Total: 3915ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns32.hichina.com, dns31.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns31.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns31.hichina.com, dns31.hichina.com, dns31.hichina.com...)

Analysis

IP Addresses

nckj.com has exactly one IP address — 170.33.12.185.

bc4399.com, dounao.com, ayvc.com plus two other host names have IP numbers in common with nckj.com.

nckj.com - robtex.com

nckj.com

com