`bt-pub.cn`

DNSSEC	⚠️ Not signed
A	47.106.79.149^{🇨🇳 Alibaba-Cloud47.106.0.0/16}
NS	`dns19.hichina.com` ⭐
		A	2408:4009:501::27^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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	139.224.142.110^{🇨🇳 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	`dns20.hichina.com`
		A	2408:4009:501::28^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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	139.224.142.108^{🇨🇳 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	`mx1.qiye.aliyun.com` ⭐
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
MX	`mxbiz1.qq.com` ⭐
MX	`mx2.qiye.aliyun.com`⁽¹⁰⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
MX	`mxbiz2.qq.com`⁽¹⁰⁾
MX	`mx3.qiye.aliyun.com`⁽¹⁵⁾
		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}
TXT	`v=spf1 include:spf.qiye.aliyun.com -all`
TXT	`v=spf1 include:spf.mail.qq.com ~all`
SOA	`dns19.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`cn`

	DNSSEC	⚠️ Not signed
	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=2035103777

Subdomains

www.bt-pub.cn

Same first word

bt-pub.cn

DNS History

8 records (8 active, 0 former)

●NSdns19.hichina.com2026-07-12 → 2026-07-29 · 2 obs

● 2026-07-12 02:54:00
● 2026-07-29 02:20:04

●NSdns20.hichina.com2026-07-12 → 2026-07-29 · 2 obs

● 2026-07-12 02:54:00
● 2026-07-29 02:20:04

●MXmx1.qiye.aliyun.com2026-07-12 → 2026-07-29 · 2 obs

● 2026-07-12 02:54:00
● 2026-07-29 02:20:04

●MXmx2.qiye.aliyun.com2026-07-12 → 2026-07-29 · 2 obs

● 2026-07-12 02:54:00
● 2026-07-29 02:20:04

●MXmx3.qiye.aliyun.com2026-07-12 → 2026-07-29 · 2 obs

● 2026-07-12 02:54:00
● 2026-07-29 02:20:04

●MXmxbiz1.qq.com2026-07-12 → 2026-07-29 · 2 obs

● 2026-07-12 02:54:00
● 2026-07-29 02:20:04

●MXmxbiz2.qq.com2026-07-12 → 2026-07-29 · 2 obs

● 2026-07-12 02:54:00
● 2026-07-29 02:20:04

●A47.106.79.1492026-07-12 → 2026-07-29 · 2 obs

● 2026-07-12 02:54:00
● 2026-07-29 02:20:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, b.dns.cn...	-
bt-pub.cn	dns19.hichina.com, dns20.hichina.com	-

✅ Authoritative Response

Server:47.118.199.198

NS records: dns19.hichina.com, dns20.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bt-pub.cn (unsigned zone)

⏱️ Timing

Total: 2029ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.106.79.149`
NS	2	`dns19.hichina.com, dns20.hichina.com`
MX	5	`mx2.qiye.aliyun.com (pri: 10), mx3.qiye.aliyun.com (pri: 15)...`
TXT	2	`v=spf1 include:spf.qiye.aliyun.com -all, v=spf1 include:spf.mail.qq.com ~all`
SOA	1	`dns19.hichina.com hostmaster.hichina.com`

Analysis

Hierarchy

bt-pub.cn is a parent domain of www.bt-pub.cn.

IP Addresses

bt-pub.cn resolves to just one IP address, 47.106.79.149.

Host names such as www.bt-pub.cn and scgbds.cn share IP numbers with bt-pub.cn.

Name Servers

DNS delegation for bt-pub.cn points to two name servers: dns19.hichina.com and dns20.hichina.com.

bt-pub.cn shares its NS records with other domains, for example kecfire.com, businessbooknow.com, zikaogd.com and two others.

bt-pub.cn and other domains like fsleo.top, szuoo.com and sxzj.cc share some name servers

These name servers are frequently paired with the name servers expirens3.hichina.com and expirens4.hichina.com.

DNS names with 9 IP addresses:

dns19.hichina.com has IP addresses 39.96.153.40, 39.96.153.60 and 47.118.199.200, plus 6 other.

dns20.hichina.com has IP addresses 39.96.153.38, 39.96.153.61 and 47.118.199.198, plus 6 other.

Mail Servers

bt-pub.cn is handled by five mail servers: mxbiz1.qq.com, mxbiz2.qq.com, mx1.qiye.aliyun.com and two others.

There is at least a partial MX overlap between bt-pub.cn and other domains, including apello.cn, machinedsgn.com, telemaster.net and two others.

These mail servers frequently appear alongside the mail servers mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

Host names that have two IP addresses:

mx3.qiye.aliyun.com has two IP addresses: 47.246.136.231 and 47.246.137.47.

Host names that point to one IP address:

mx1.qiye.aliyun.com directs to 47.246.137.47.

mx2.qiye.aliyun.com directs to 47.246.136.231.

Host names pointing to 47.246.136.231 IP addresses: mx3.qiye.aliyun.com and mx2.qiye.aliyun.com.

Host names pointing to 47.246.137.47 IP addresses: mx3.qiye.aliyun.com and mx1.qiye.aliyun.com.