`jtagbox.cn`

DNSSEC	⚠️ Not signed
A	47.75.204.145^{🇭🇰 Alibaba-Cloud47.75.128.0/17 Proxy-registered route object}
NS	`dns3.4cun.com` ⭐
		A	2408:4005:3dc:af00:a6be:339e:a1a0:d2b8^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	61.172.183.74^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
NS	`dns.4cun.com` ⚠️ Not in zone NS records
NS	`dns4.51dns.top` ⚠️ Not in zone NS records
		A	2408:4005:3dc:af00:a6be:339e:a1a0:d2b8^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	219.138.102.210^{🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang}
SOA	`dns.4cun.com`admin@jtagbox.cn serial=1772528258

`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=2034786023

Subdomains

www.jtagbox.cn

Same first word

jtagbox.cn

DNS History

6 records (4 active, 2 former)

●NSdns.4cun.com2015-08-15 → 2026-05-13 · 2 obs

● 2015-08-15 07:25:04
● 2026-05-13 06:49:26

●NSdns3.4cun.com2026-03-13 → 2026-05-13 · 3 obs

○ 2015-08-15 07:25:04
● 2026-03-13 14:58:34
● 2026-05-13 06:49:26

●NSdns4.51dns.top2026-03-13 → 2026-05-13 · 3 obs

○ 2015-08-15 07:25:04
● 2026-03-13 14:58:34
● 2026-05-13 06:49:26

○A119.145.147.1252015-08-15 → 2017-03-22 · 4 obs

● 2015-08-15 07:25:04
● 2017-03-22 09:45:32
○ 2017-07-02 21:20:06
○ 2026-05-13 06:49:26

●A47.75.204.1452026-03-13 → 2026-05-13 · 3 obs

○ 2017-07-02 21:20:06
● 2026-03-13 14:58:34
● 2026-05-13 06:49:26

○CNAMEjinwei.dns21.org2015-08-15 → 2017-07-02 · 4 obs

● 2015-08-15 07:25:04
● 2017-07-02 21:20:06
○ 2026-03-13 14:58:34
○ 2026-05-13 06:49:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...	-
jtagbox.cn	dns3.4cun.com, dns4.51dns.top	-

✅ Authoritative Response

Server:61.172.183.74

NS records: dns3.4cun.com, dns4.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jtagbox.cn (unsigned zone)

⏱️ Timing

Total: 3258ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.75.204.145`
SOA	1	`dns.4cun.com admin.jtagbox.cn`

Analysis

Hierarchy

jtagbox.cn is the parent of www.jtagbox.cn.

IP Addresses

jtagbox.cn resolves to one IP number: 47.75.204.145.

Other host names, for instance riffbox.cn, sam-sung.cn and www.jtagbox.cn share IP numbers with jtagbox.cn.

Name Servers

jtagbox.cn is delegated to three name servers dns3.4cun.com, dns.4cun.com and dns4.51dns.top.

jtagbox.cn at least partially shares name servers with other domains, for instance juho-tech.com, zhaogu.net, lvhuiduo.net, banbianshan.com and hot.hn.cn.

These name servers are commonly used with the following name servers: dns7.4cun.com, ns3.4cun.com, ns4.4cun.com, dns6.51dns.top, dns8.51dns.top, dns1.4cun.com, ns1.4cun.com, dns5.4cun.com, dns4.4cun.com and dns2.51dns.top.

Host names with two IP numbers:

dns3.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8 and 61.172.183.74.

dns4.51dns.top points to 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8 and 219.138.102.210.

Names pointing to 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8: dns3.4cun.com and dns4.51dns.top.

jtagbox.cn - robtex.com

jtagbox.cn

cn