`ntbc.cn`

DNSSEC	⚠️ Not signed
A	123.59.154.172^{🇨🇳 CHINA169-BJ123.59.128.0/19 CloudVsp.Inc}
NS	`ns11.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	`ce1.xincache.com`
		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	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	117.135.128.235^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
			PTR	`(root)`
		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	`ce2.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	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	117.135.128.235^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
			PTR	`(root)`
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	220.196.136.35^{🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24}
MX	`mxf1.zmail300.cn` ⭐
		A	117.50.175.134^{🇨🇳 CHINA169-BJ117.50.160.0/19 China Telecom Beijing Co. Ltd.}
			PTR	`51xgm.com`
			PTR	`hhseek.com`
MX	`mxv.zmail300.cn`⁽¹⁰⁾
		A	152.32.192.120^{🇭🇰 UCLOUD-1152.32.192.0/24 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED FLAT/RM 603 6/F LAWS COMMERCIAL PLAZA 788 CHEUNG SHA WAN ROAD, KL,}
MX	`mxf.zmail300.cn`⁽⁵⁰⁾
		A	101.237.133.34^{🇨🇳 CHINA-1101.237.128.0/20 China Telecom Beijing Co. Ltd.}
			PTR	`outhb2.global-mail.cn`
MX	`mxw.zmail300.cn`⁽⁵⁰⁾
		A	101.237.133.34^{🇨🇳 CHINA-1101.237.128.0/20 China Telecom Beijing Co. Ltd.}
			PTR	`outhb2.global-mail.cn`
TXT	`v=spf1 include:spfv.zmail300.cn -all`
TXT	`v=spf1 include:spf.zmail300.cn ~all`
SOA	`ns11.xincache.com`ns12@xincache.com serial=1702031987

`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=2035117897

Same first word

ntbc.info

ntbc.us

ntbc.net

ntbc.cn

ntbc.ch

ntbc.ca

ntbc.pl

Similar names

nbct.xyz

nbtc.gov.sd

ctbn.com

nctb.us

bntc.be

nbtc.eu

tbnc.ru

btnc.net

ncbt.org

nbtc.nl

cnbt.org

nctb.com.cn

cbnt.de

tbcn.net

btcn.dk

tbnc.de

bctn.com

ncbt.cn

cbtn.com

bcnt.ru

tnbc.org

bctn.nl

btnc.tv

cbnt.ru

ctbn.com.cn

nbtc.ac.th

cntb.cn

tbcn.s3.amazonaws.com

bctn.be

bntc.ru

ntcb.be

bnct.cn

cbtn.ru

tcnb.com

btnc.me

bnct.net

nbtc.go.th

btnc.ru

bcnt.de

cntb.net

bntc.fr

tnbc.net

bcnt.eu

btcn.it

nbct.com.cn

bntc.df.gov.br

nbct.org.uk

cbnt.net

bcnt.cn

nctb.com

tnbc.nl

nctb.org

cbnt.it

bnct.nl

nbct.co.uk

ncbt.ca

bnct.jp

tcbn.de

btcn.nl

nbtc.com

tbnc.com

btcn.com

tcbn.co.jp

bnct.ch

btcn.tv

bcnt.org.au

cbnt.co

nctb.nl

tcnb.org

ctnb.net

btnc.com

nbtc.co

cnbt.bank

cnbt.cn

ctbn.de

cntb.cc

bnct.it

nctb.info

btcn.net

nbtc.de

nctb.biz

tbcn.com

bntc.org

tbnc.net

btnc.nc

bnct.ru

cbnt.us

bnct.us

btnc.com.tr

bntc.net

btcn.ru

bctn.net

cbnt.com

cbnt.org

tnbc.no

tcbn.ch

ntcb.org

bcnt.nl

DNS History

16 records (8 active, 8 former)

●NSce1.xincache.com2026-07-01 → 2026-07-31 · 3 obs

○ 2017-06-25 04:04:36
● 2026-07-01 17:21:38
● 2026-07-31 21:42:00

●NSce2.xincache.com2026-07-01 → 2026-07-31 · 3 obs

○ 2017-06-25 04:04:36
● 2026-07-01 17:21:38
● 2026-07-31 21:42:00

○NSdns7.hichina.com2015-07-04 → 2015-11-12 · 4 obs

● 2015-07-04 00:30:10
● 2015-11-12 18:26:02
○ 2016-04-18 13:04:06
○ 2026-07-31 21:42:00

○NSdns8.hichina.com2015-07-04 → 2015-11-12 · 4 obs

● 2015-07-04 00:30:10
● 2015-11-12 18:26:02
○ 2016-04-18 13:04:06
○ 2026-07-31 21:42:00

○NSns1.ce.net.cn2016-04-18 → 2017-06-25 · 5 obs

○ 2015-11-12 18:26:02
● 2016-04-18 13:04:06
● 2017-06-25 04:04:36
○ 2026-07-01 17:21:38
○ 2026-07-31 21:42:00

●NSns11.xincache.com2026-07-01 → 2026-07-31 · 3 obs

○ 2017-06-25 04:04:36
● 2026-07-01 17:21:38
● 2026-07-31 21:42:00

○NSns3.ce.net.cn2016-04-18 → 2017-06-25 · 5 obs

○ 2015-11-12 18:26:02
● 2016-04-18 13:04:06
● 2017-06-25 04:04:36
○ 2026-07-01 17:21:38
○ 2026-07-31 21:42:00

○MX1769716159.pamx1.hotmail.com2015-07-04 → 2015-11-12 · 4 obs

● 2015-07-04 00:30:10
● 2015-11-12 18:26:02
○ 2016-04-18 13:04:06
○ 2026-07-31 21:42:00

○MXmx.zmail300.cn2016-04-18 → 2017-06-25 · 5 obs

○ 2015-11-12 18:26:02
● 2016-04-18 13:04:06
● 2017-06-25 04:04:36
○ 2026-07-01 17:21:38
○ 2026-07-31 21:42:00

○MXmx1.zmail300.cn2016-04-18 → 2017-06-25 · 5 obs

○ 2015-11-12 18:26:02
● 2016-04-18 13:04:06
● 2017-06-25 04:04:36
○ 2026-07-01 17:21:38
○ 2026-07-31 21:42:00

●MXmxf.zmail300.cn2026-07-01 → 2026-07-31 · 3 obs

○ 2017-06-25 04:04:36
● 2026-07-01 17:21:38
● 2026-07-31 21:42:00

●MXmxf1.zmail300.cn2026-07-01 → 2026-07-31 · 3 obs

○ 2017-06-25 04:04:36
● 2026-07-01 17:21:38
● 2026-07-31 21:42:00

●MXmxv.zmail300.cn2026-07-01 → 2026-07-31 · 3 obs

○ 2017-06-25 04:04:36
● 2026-07-01 17:21:38
● 2026-07-31 21:42:00

●MXmxw.zmail300.cn2026-07-01 → 2026-07-31 · 3 obs

○ 2017-06-25 04:04:36
● 2026-07-01 17:21:38
● 2026-07-31 21:42:00

○A115.29.164.2122015-07-04 → 2015-11-12 · 4 obs

● 2015-07-04 00:30:10
● 2015-11-12 18:26:02
○ 2016-04-18 13:04:06
○ 2026-07-31 21:42:00

●A123.59.154.1722026-07-01 → 2026-07-31 · 3 obs

○ 2016-04-18 13:04:06
● 2026-07-01 17:21:38
● 2026-07-31 21:42:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
ntbc.cn	ce1.xincache.com, ce2.xincache.com	-

✅ Authoritative Response

Server:112.80.181.45

NS records: ce1.xincache.com, ce2.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ntbc.cn (unsigned zone)

⏱️ Timing

Total: 1653ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`123.59.154.172`
NS	2	`ce2.xincache.com, ce1.xincache.com`
MX	4	`mxf.zmail300.cn (pri: 5), mxv.zmail300.cn (pri: 10)...`
TXT	2	`v=spf1 include:spf.zmail300.cn ~all, v=spf1 include:spfv.zmail300.cn -all`
SOA	1	`ns11.xincache.com ns12.xincache.com`

Analysis

IP Addresses

ntbc.cn resolves to just one IP address, 123.59.154.172.

Two other host names, along with zccnclaser.com, sunrateled.com and gdoptics.cn, also share IP numbers with ntbc.cn.

Name Servers

ntbc.cn is delegated to three name servers: ce1.xincache.com, ce2.xincache.com and ns11.xincache.com.

There is at least partial name server overlap between ntbc.cn and other domains — lumine.com.cn, jrpsc.com, sdtjy.com and two more among them.

These name servers regularly appear alongside ns12.xincache.com, ns19.xincache.com, ns20.xincache.com and 6 other name servers in NS record sets.

DNS names with 8 IP addresses:

ns11.xincache.com resolves to 1.12.0.4, 36.155.149.180, 112.80.181.45 and 5 other IP addresses.

DNS names with 7 IP addresses:

ce1.xincache.com resolves to 1.12.0.4, 112.80.181.45, 117.89.178.173 and 4 other IP addresses.

DNS names with 6 IP addresses:

ce2.xincache.com resolves to 1.12.0.1, 117.89.178.184, 117.135.128.235 and 3 other IP addresses.

ns11.xincache.com and ce1.xincache.com are host names that each point to 2402:4e00:1470:2::e IP addresses.

ns11.xincache.com and ce1.xincache.com are host names that each point to 1.12.0.4 IP addresses.

ns11.xincache.com and ce1.xincache.com are host names that each point to 112.80.181.45 IP addresses.

ns11.xincache.com and ce1.xincache.com are host names that each point to 117.89.178.173 IP addresses.

ns11.xincache.com and ce1.xincache.com are host names that each point to 125.94.59.210 IP addresses.

ns11.xincache.com and ce1.xincache.com are host names that each point to 129.211.176.209 IP addresses.

ce1.xincache.com and ce2.xincache.com are host names that each point to 117.135.128.235 IP addresses.

Mail Servers

Mail for ntbc.cn is handled by four mail servers: mxf1.zmail300.cn, mxf.zmail300.cn, mxv.zmail300.cn and mxw.zmail300.cn.

There is at least a partial MX overlap between ntbc.cn and other domains, including bohemould.com, eastshing.cn, hrfnet.com and two others.

These mail servers are routinely seen in conjunction with the mail servers hwmx.zmail300.cn and mx.zmail300.cn.

The hosts mxf1.zmail300.cn, mxf.zmail300.cn, mxv.zmail300.cn and mxw.zmail300.cn each carry one IP address: 117.50.175.134 for mxf1.zmail300.cn, 101.237.133.34 for mxf.zmail300.cn, 152.32.192.120 for mxv.zmail300.cn and 101.237.133.34 for mxw.zmail300.cn. The address 101.237.133.34 is shared by mxf.zmail300.cn and mxw.zmail300.cn.

mxf.zmail300.cn and mxw.zmail300.cn are host names that each point to 101.237.133.34 IP addresses.

ntbc.cn - robtex.com

ntbc.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`ntbc.cn`

`cn`