`82sup.cn`

DNSSEC	⚠️ Not signed
NS	`classroom.dnspod.net` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.14.119.35^{🇨🇳 TENCENT-NET-AP1.14.64.0/18}
		A	111.13.13.35^{🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route)}
		A	117.89.178.35^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	220.196.136.35^{🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24}
NS	`permanent.dnspod.net`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.13.76.35^{🇨🇳 TENCENT-NET-AP1.13.64.0/18}
		A	36.155.149.35^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	101.227.168.35^{🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC}
		A	111.206.98.235^{🇨🇳 CHINA169-BJ111.206.98.0/24}
SOA	`classroom.dnspod.net`freednsadmin@dnspod.com serial=1784695233

`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 2035-09-16 #12

Subdomains

ds.82sup.cn

Same first word

82sup.cn

DNS History

2 records (2 active, 0 former)

●NSclassroom.dnspod.net2026-06-22 → 2026-07-26 · 2 obs

● 2026-06-22 22:48:14
● 2026-07-26 05:18:12

●NSpermanent.dnspod.net2026-06-22 → 2026-07-26 · 2 obs

● 2026-06-22 22:48:14
● 2026-07-26 05:18:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
82sup.cn	classroom.dnspod.net, permanent.dnspod.net	-

✅ Authoritative Response

Server:111.206.98.235

NS records: classroom.dnspod.net, permanent.dnspod.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 82sup.cn (unsigned zone)

⏱️ Timing

Total: 1627ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`classroom.dnspod.net, permanent.dnspod.net`
SOA	1	`classroom.dnspod.net freednsadmin.dnspod`

Analysis

Hierarchy

82sup.cn is a parent domain of ds.82sup.cn.

Name Servers

Two name servers handle the delegation for 82sup.cn: classroom.dnspod.net and permanent.dnspod.net.

82sup.cn has the same name server delegation as a number of other domains, such as 687faka.com, mdxmx.com, lzhhjs.cn and two more.

82sup.cn is at least partially co-delegated on name servers with other domains, such as qj023.com.

Host names resolving to 6 IP numbers:

classroom.dnspod.net resolves to 1.12.0.4, 1.14.119.35 and 111.13.13.35 among others, with 3 other IP addresses in total.

permanent.dnspod.net resolves to 1.12.0.1, 1.13.76.35 and 36.155.149.35 among others, with 3 other IP addresses in total.

82sup.cn - robtex.com

82sup.cn

cn