`cn-tb.com`

DNSSEC	⚠️ Not signed
NS	`ns15.xincache.com` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	2402:4e00:1730::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1700::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.45^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.173^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	125.94.59.210^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	129.211.176.209^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
NS	`ns16.xincache.com`
		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	36.155.149.176^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.111^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	163.177.5.23^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
MX	`mx02.corpmail.cn` ⭐
		A	125.76.225.205^{🇨🇳 CHINANET-IDC-SN125.76.224.0/19 China Telecom Data Network Management Division Network Operation & Maintenance Department No 19 Chaoyangmen North Street Dongcheng District}
SOA	`ns15.xincache.com`enterprise1dnsadmin@dnspod.com serial=1641884261

`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=1774629632

Same first word

cn-tb.com

cn-tb.com.cn

Similar names

tc-nb.co.jp

nb-tc.com

c-nbt.com

cn-bt.com

btc-n.ch

DNS History

4 records (3 active, 1 former)

●NSns15.xincache.com2015-08-18 → 2026-03-27 · 2 obs

● 2015-08-18 12:23:38
● 2026-03-27 17:03:10

●NSns16.xincache.com2015-08-18 → 2026-03-27 · 2 obs

● 2015-08-18 12:23:38
● 2026-03-27 17:03:10

●MXmx02.corpmail.cn2026-02-22 → 2026-03-27 · 3 obs

○ 2016-12-24 16:39:32
● 2026-02-22 12:36:02
● 2026-03-27 17:03:10

○MXmx03.corpmail.cn2015-08-18 → 2016-12-24 · 4 obs

● 2015-08-18 12:23:38
● 2016-12-24 16:39:32
○ 2026-02-22 12:36:02
○ 2026-03-27 17:03:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cn-tb.com	ns15.xincache.com, ns16.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.1

NS records: ns15.xincache.com, ns16.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cn-tb.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns15.xincache.com, ns16.xincache.com`
MX	1	`mx02.corpmail.cn (pri: 20)`
SOA	1	`ns15.xincache.com enterprise1dnsadmin.dn`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns15.xincache.com, ns15.xincache.com, ns15.xincache.com...)

Analysis

Name Servers

cn-tb.com is delegated to two name servers: ns15.xincache.com and ns16.xincache.com.

cn-tb.com uses the same name server setup as other domains such as sino-zj.com, taicai8.com, teramicrowave.com, ccwancheng.com and zghdl.com.

cn-tb.com shares name servers with other domains at least partially, for example meicun.com, tahdl.com, ccne.cn, desu.com.cn and cxstar.cn.

These name servers are commonly used with the name servers ns11.xincache.com and ns12.xincache.com.

Eight IP numbers per host:

The host name ns15.xincache.com points to 2402:4e00:1470:2::e, 2402:4e00:1730::e, 1.12.0.4, 36.155.149.180, 112.80.181.45, 117.89.178.173, 125.94.59.210 and 129.211.176.209.

Seven IP numbers per host:

The host name ns16.xincache.com points to 2402:4e00:111:fff::c, 1.12.0.1, 36.155.149.176, 112.80.181.111, 117.89.178.184, 129.211.176.239 and 163.177.5.23.

Mail Servers

cn-tb.com is handled by a single mail server, mx02.corpmail.cn.

cn-tb.com shares the same mail server setup as other domains, for instance handsen.cn, fj-xingda.com, shdaiyi.com, czmxjd.com and jeida.net.

cn-tb.com shares at least partially some mail servers with other domains, for instance cemcom.com.cn.

these mail servers are commonly used alongside mxn.mxhichina.com and mxw.mxhichina.com.

mx02.corpmail.cn points to a single IP: 125.76.225.205.

cn-tb.com - robtex.com

cn-tb.com

com