`idbt.cn`

	CNAME	`show.17ex.com`
	DNSSEC	⚠️ Not signed
	A	8.210.157.232^{🇭🇰 Alibaba-Cloud8.210.128.0/17 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=2035117306

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DNS History

5 records (3 active, 2 former)

○NSdns10.hichina.com2015-07-05 → 2016-04-17 · 4 obs

● 2015-07-05 16:10:16
● 2016-04-17 10:04:54
○ 2026-06-30 18:57:32
○ 2026-07-31 19:13:10

○NSdns9.hichina.com2015-07-05 → 2016-04-17 · 4 obs

● 2015-07-05 16:10:16
● 2016-04-17 10:04:54
○ 2026-06-30 18:57:32
○ 2026-07-31 19:13:10

●NSns1.17ex.com2026-06-30 → 2026-07-31 · 3 obs

○ 2016-04-17 10:04:54
● 2026-06-30 18:57:32
● 2026-07-31 19:13:10

●NSns2.17ex.com2026-06-30 → 2026-07-31 · 3 obs

○ 2016-04-17 10:04:54
● 2026-06-30 18:57:32
● 2026-07-31 19:13:10

●CNAMEshow.17ex.com2026-06-30 → 2026-07-31 · 2 obs

● 2026-06-30 18:57:32
● 2026-07-31 19:13:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	c.dns.cn, a.dns.cn, b.dns.cn, d.dns.cn...	-
idbt.cn	ns1.17ex.com, ns2.17ex.com	-

✅ Authoritative Response

Server:218.98.111.191

NS records: ns1.17ex.com, ns2.17ex.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for idbt.cn (unsigned zone)

⏱️ Timing

Total: 2982ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.17ex.com, ns2.17ex.com`
CNAME	1	`show.17ex.com`
SOA	1	`ns1.17ex.com admin.17ex.com`

Analysis

IP Addresses

idbt.cn resolves to one IP address: 8.210.157.232.

sales2.17ex.com, savon.cn, sales1.17ex.com and two other host names share IP numbers with idbt.cn.

idbt.cn - robtex.com

idbt.cn

cn