`nb-btt.com`

DNSSEC	⚠️ Not signed
A	23.226.57.40^{🇺🇸 CXICL-AS-AP23.226.57.0/24 RedLuff, LLC}
NS	`dns5.hichina.com` ⭐
		A	2408:4009:501::13^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.35^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.49^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.195^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.209^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.35^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.49^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.105^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.119^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns6.hichina.com`
		A	2408:4009:501::14^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.36^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.50^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.196^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.210^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.36^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.50^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.106^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.120^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
MX	`mxn.mxhichina.com` ⭐
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
MX	`mxw.mxhichina.com`⁽¹⁰⁾
		A	47.246.99.195^{🇺🇸 Alibaba-Cloud47.246.96.0/22 Proxy-registered route object}
			PTR	`reachsmartdwell.com`
TXT	`v=spf1 include:spf.mxhichina.com ~all`
SOA	`dns5.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`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=1777414256

Same first word

nb-btt.com

DNS History

8 records (5 active, 3 former)

○NSdns10.hichina.com2016-12-16 → 2017-08-18 · 4 obs

● 2016-12-16 08:41:26
● 2017-08-18 08:35:06
○ 2026-03-15 21:53:50
○ 2026-04-28 22:36:22

●NSdns5.hichina.com2026-03-15 → 2026-04-28 · 3 obs

○ 2017-08-18 08:35:06
● 2026-03-15 21:53:50
● 2026-04-28 22:36:22

●NSdns6.hichina.com2026-03-15 → 2026-04-28 · 3 obs

○ 2017-08-18 08:35:06
● 2026-03-15 21:53:50
● 2026-04-28 22:36:22

○NSdns9.hichina.com2016-12-16 → 2017-08-18 · 4 obs

● 2016-12-16 08:41:26
● 2017-08-18 08:35:06
○ 2026-03-15 21:53:50
○ 2026-04-28 22:36:22

●MXmxn.mxhichina.com2016-12-16 → 2026-04-28 · 2 obs

● 2016-12-16 08:41:26
● 2026-04-28 22:36:22

●MXmxw.mxhichina.com2016-12-16 → 2026-04-28 · 2 obs

● 2016-12-16 08:41:26
● 2026-04-28 22:36:22

○A139.129.180.402016-12-16 → 2016-12-16 · 3 obs

● 2016-12-16 08:41:26
○ 2017-08-18 08:35:06
○ 2026-04-28 22:36:22

●A23.226.57.402017-08-18 → 2026-04-28 · 3 obs

○ 2016-12-16 08:41:26
● 2017-08-18 08:35:06
● 2026-04-28 22:36:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
nb-btt.com	dns5.hichina.com, dns6.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.35

NS records: dns5.hichina.com, dns6.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nb-btt.com (unsigned zone)

⏱️ Timing

Total: 649ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`23.226.57.40`
NS	2	`dns6.hichina.com, dns5.hichina.com`
MX	2	`mxn.mxhichina.com (pri: 5), mxw.mxhichina.com (pri: 10)`
TXT	1	`v=spf1 include:spf.mxhichina.com ~all`
SOA	1	`dns5.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns5.hichina.com, dns5.hichina.com, dns5.hichina.com...)

Analysis

IP Addresses

nb-btt.com points to a single IP number: 23.226.57.40.

Name Servers

Delegation for nb-btt.com rests with two name servers, dns5.hichina.com and dns6.hichina.com.

nb-btt.com shares the same name server setup as other domains, including deaoxi.com, sinofactory.com, xytcms.com, hexiyuan.net and zzyydbj.com.

nb-btt.com at least partially shares name servers with other domains, for instance posui.net, 185rs.com, ladysl.cn, dzyl84.com and etechina.com.

These name servers are commonly used together with the name servers ns1.alidns.com, ns2.alidns.com, dns10.hichina.com, dns9.hichina.com, expirens3.hichina.com, expirens4.hichina.com, dns15.hichina.com, dns16.hichina.com, dns1.hichina.com and dns2.hichina.com.

Host names with nine IP numbers:

dns5.hichina.com points to: 2408:4009:501::13, 39.96.153.35, 39.96.153.49, 47.118.199.195, 47.118.199.209, 120.76.107.35, 120.76.107.49, 139.224.142.105 and 139.224.142.119.

dns6.hichina.com points to: 2408:4009:501::14, 39.96.153.36, 39.96.153.50, 47.118.199.196, 47.118.199.210, 120.76.107.36, 120.76.107.50, 139.224.142.106 and 139.224.142.120.

Mail Servers

nb-btt.com is handled by two mail servers: mxn.mxhichina.com and mxw.mxhichina.com.

nb-btt.com uses the same mail server configuration as other domains, such as xdiiot.com, 51vss.com, waywell.com, tongche.net and 360psy.com.

nb-btt.com shares mail servers with other domains at least in part, for instance btoc.com.cn, dengdingtex.com, zskjgz.com, nbkunyuan.cn and changzhengedu.com.

these mail servers are often used with mxbiz1.qq.com and mxbiz2.qq.com.

Host names with two IP numbers:

mxn.mxhichina.com points to 47.246.136.231 and 47.246.137.47.

Host names with one IP number:

mxw.mxhichina.com points to 47.246.99.195.

nb-btt.com - robtex.com

nb-btt.com

com