`prowintool.com`

DNSSEC	⚠️ Not signed
A	221.224.57.115^{🇨🇳 CHINANET-BACKBONE221.224.0.0/13 ChinaNet Jiangsu Network}
		PTR	`mail.prowintool.com`
NS	`dns1.hichina.com` ⭐
		A	2408:4009:501::9^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.63^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.213^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.63^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.113^{🇨🇳 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	139.224.142.123^{🇨🇳 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	`dns2.hichina.com`
		A	2408:4009:501::10^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.44^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.54^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.204^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.214^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.44^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.54^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.114^{🇨🇳 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	139.224.142.124^{🇨🇳 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	`cdn.corpemail.net` ⭐
		A	23.91.98.8^{🇺🇸 UCLOUD-123.91.98.0/24 ZL-IDC-UCLOUD-HKG}
			PTR	`sal605.corpemail.net`
		A	47.74.183.245^{🇸🇬 Alibaba-Cloud47.74.128.0/18 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US}
			PTR	`sal604.corpemail.net`
		A	47.88.156.124^{🇸🇬 Alibaba-Cloud47.88.128.0/18 Alibaba CLoud}
			PTR	`sal603.corpemail.net`
		A	47.88.170.90^{🇸🇬 Alibaba-Cloud47.88.128.0/18 Alibaba CLoud}
			PTR	`sal601.corpemail.net`
		A	95.85.54.247^{🇳🇱 DIGITALOCEAN95.85.0.0/18 DigitalOcean}
			PTR	`inbound-603.protection.corpemail.net`
		A	159.100.25.64^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-101.corpemail.net`
		A	159.100.25.163^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-401.corpemail.net`
		A	159.100.25.212^{🇦🇹 AT-FIRSTCOLO159.100.24.0/22 First Colo via AS203833}
			PTR	`dd-cn2-402.corpemail.net`
		A	188.166.26.239^{🇳🇱 DIGITALOCEAN188.166.0.0/18 DigitalOcean}
			PTR	`inbound-602.protection.corpemail.net`
MX	`cdn.corp-email.cn`⁽²⁾
		A	47.88.156.124^{🇸🇬 Alibaba-Cloud47.88.128.0/18 Alibaba CLoud}
			PTR	`sal603.corpemail.net`
		A	95.85.28.238^{🇳🇱 DIGITALOCEAN95.85.0.0/18 DigitalOcean}
			PTR	`vip2-fastemail-cn.biz-email.net`
		A	178.62.221.58^{🇳🇱 DIGITALOCEAN178.62.192.0/18 DigitalOcean}
			PTR	`sgcdn94.corpemail.net`
		A	188.166.82.68^{🇳🇱 DIGITALOCEAN188.166.64.0/18 DigitalOcean}
			PTR	`inbound-601.protection.corpemail.net`
MX	`mail.biz-email.net`⁽³⁾
		A	222.73.234.229^{🇨🇳 SHANGHAITELECOM222.73.234.0/24 SHIDC}
			PTR	`mail.biz-email.net`
		A	222.73.234.234^{🇨🇳 SHANGHAITELECOM222.73.234.0/24 SHIDC}
			PTR	`mail.biz-email.net`
		A	222.73.234.236^{🇨🇳 SHANGHAITELECOM222.73.234.0/24 SHIDC}
			PTR	`mail.biz-email.net`
MX	`cnc.biz-email.net`⁽⁴⁾
		A	210.51.26.140^{🇨🇳 CU-CN-AS210.51.26.0/24}
		A	210.51.26.150^{🇨🇳 CU-CN-AS210.51.26.0/24}
MX	`mail.prowintool.com`⁽¹⁰⁾
		A	221.224.57.115^{🇨🇳 CHINANET-BACKBONE221.224.0.0/13 ChinaNet Jiangsu Network}
			PTR	`mail.prowintool.com`
TXT	`v=spf1 include:_s.corp-email.com -all`
SOA	`dns1.hichina.com`hostmaster@hichina.com 2026-05-28 #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=1785165717

MX for

mail.prowintool.com

Subdomains

mail.prowintool.com

Same first word

prowintool.com

DNS History

8 records (8 active, 0 former)

●NSdns1.hichina.com2008-03-16 → 2026-07-27 · 2 obs

● 2008-03-16 23:08:58
● 2026-07-27 15:33:38

●NSdns2.hichina.com2008-03-16 → 2026-07-27 · 2 obs

● 2008-03-16 23:08:58
● 2026-07-27 15:33:38

●MXcdn.corp-email.cn2015-07-01 → 2026-07-27 · 3 obs

○ 2008-03-16 23:08:58
● 2015-07-01 03:29:20
● 2026-07-27 15:33:38

●MXcdn.corpemail.net2015-07-01 → 2026-07-27 · 3 obs

○ 2008-03-16 23:08:58
● 2015-07-01 03:29:20
● 2026-07-27 15:33:38

●MXcnc.biz-email.net2015-07-01 → 2026-07-27 · 3 obs

○ 2008-03-16 23:08:58
● 2015-07-01 03:29:20
● 2026-07-27 15:33:38

●MXmail.biz-email.net2015-07-01 → 2026-07-27 · 3 obs

○ 2008-03-16 23:08:58
● 2015-07-01 03:29:20
● 2026-07-27 15:33:38

●MXmail.prowintool.com2008-03-16 → 2026-07-27 · 2 obs

● 2008-03-16 23:08:58
● 2026-07-27 15:33:38

●A221.224.57.1152008-03-16 → 2026-07-27 · 2 obs

● 2008-03-16 23:08:58
● 2026-07-27 15:33:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net...	-
prowintool.com	dns2.hichina.com, dns1.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.43

NS records: dns2.hichina.com, dns1.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prowintool.com (unsigned zone)

⏱️ Timing

Total: 4529ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`221.224.57.115`
NS	2	`dns1.hichina.com, dns2.hichina.com`
MX	5	`mail.biz-email.net (pri: 3), cnc.biz-email.net (pri: 4)...`
TXT	1	`v=spf1 include:_s.corp-email.com -all`
SOA	1	`dns1.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns2.hichina.com, dns2.hichina.com, dns2.hichina.com...)

Analysis

Hierarchy

prowintool.com serves as the parent of mail.prowintool.com.

Mail Server Role

prowintool.com is a mail server for mail.prowintool.com.

mail.prowintool.com frequently appears as a mail server alongside prowintool.com.

IP Addresses

prowintool.com directs to one IP number, which is 221.224.57.115.

Other host names, such as mail.prowintool.com, share IP numbers with prowintool.com.

Name Servers

prowintool.com is delegated to two name servers: dns1.hichina.com and dns2.hichina.com.

prowintool.com has the same name server delegation as a number of other domains, such as guangding.cn, lensow.com, ultipa.cn and two more.

prowintool.com has at least partial name server overlap with other domains, such as jsztl.com, shuola.com, xmou.com and two others.

It is common to see these name servers used together with name servers expirens3.hichina.com and expirens4.hichina.com.

Host names resolving to 9 IP numbers:

dns1.hichina.com resolves to 39.96.153.43, 39.96.153.63, 47.118.199.203 and 6 other IP addresses.

dns2.hichina.com resolves to 39.96.153.44, 39.96.153.54, 47.118.199.204 and 6 other IP addresses.

Mail Servers

prowintool.com is handled by five mail servers: cdn.corp-email.cn, mail.prowintool.com, cnc.biz-email.net and two others.

prowintool.com shares at least some of its mail servers with other domains — for example chinesesilk.com, tkas.com.cn, primetime.com.cn and two more.

It is common to find these mail servers paired with mail servers mail.biz-email.net, cdn.corpemail.net, mdn.corp-email.cn and 3 more.

Host names resolving to 9 IP numbers:

cdn.corpemail.net resolves to 23.91.98.8, 47.74.183.245, 47.88.156.124 and 6 other IP addresses.

Hosts pointing to four IP addresses:

cdn.corp-email.cn has four IP addresses: 47.88.156.124, 95.85.28.238, 178.62.221.58 and 188.166.82.68.

Hosts with three IP address records:

mail.biz-email.net points to 222.73.234.229, 222.73.234.234 and 222.73.234.236.

Hosts with two IP numbers each:

cnc.biz-email.net points to 210.51.26.140 and 210.51.26.150.

Hosts that resolve to one IP address:

mail.prowintool.com points to 221.224.57.115.

cdn.corpemail.net and cdn.corp-email.cn are host names that each point to 47.88.156.124 IP addresses.

prowintool.com - robtex.com

prowintool.com

com

MX for

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

Mail Server Role

IP Addresses

Name Servers

Mail Servers

`prowintool.com`

`com`