`zhenghai.com`

DNSSEC	⚠️ Not signed
A	47.105.98.95^{🇨🇳 Alibaba-Cloud47.105.0.0/16}
NS	`ns1.dnsv4.com` ⭐
		A	1.12.0.24^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.12.0.25^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.13.76.53^{🇨🇳 TENCENT-NET-AP1.13.64.0/18}
		A	36.155.149.53^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	43.134.249.54^{🇸🇬 TENCENT-NET-AP-CN43.134.224.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	117.89.178.53^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	125.94.59.153^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
NS	`ns2.dnsv4.com`
		A	1.12.0.23^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.12.0.26^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	43.130.172.54^{🇸🇬 TENCENT-NET-AP-CN43.130.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	101.227.168.53^{🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC}
		A	111.13.203.53^{🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route)}
		A	117.135.128.153^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
		A	163.177.5.53^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
		A	220.196.136.53^{🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24}
MX	`zhbio-com.corpsmtp.net` ⭐
		A	8.219.152.31^{🇸🇬 Alibaba-Cloud8.219.128.0/17 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
			PTR	`sal703.corpsmtp.net`
		A	8.219.208.100^{🇸🇬 Alibaba-Cloud8.219.128.0/17 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
			PTR	`sal708.corpsmtp.net`
		A	8.219.223.136^{🇸🇬 Alibaba-Cloud8.219.128.0/17 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
			PTR	`sal704.corpsmtp.net`
		A	8.222.164.222^{🇸🇬 Alibaba-Cloud8.222.128.0/18 Alibaba.com Singapore E-Commerce Private Limited 51 Bras Basah Road 04-08 Lazada One Singapore 189554}
			PTR	`sal705.corpsmtp.net`
		A	47.236.20.247^{🇸🇬 Alibaba-Cloud47.236.0.0/16 Proxy-registered route object}
			PTR	`sal707.corpsmtp.net`
		A	47.236.21.126^{🇸🇬 Alibaba-Cloud47.236.0.0/16 Proxy-registered route object}
			PTR	`sal706.corpsmtp.net`
MX	`zhbio-com.corpsmtp.cn`⁽¹⁰⁾
		A	46.101.220.252^{🇩🇪 DIGITALOCEAN46.101.128.0/17 DigitalOcean}
			PTR	`inbound-protection-604.corpsmtp.net`
		A	47.74.38.91^{🇯🇵 Alibaba-Cloud47.74.32.0/19 Proxy-registered route object}
			PTR	`sal701.corpsmtp.net`
		A	47.74.38.124^{🇯🇵 Alibaba-Cloud47.74.32.0/19 Proxy-registered route object}
			PTR	`sal702.corpsmtp.net`
		A	47.74.155.178^{🇸🇬 Alibaba-Cloud47.74.128.0/18 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US}
			PTR	`sal606.corpsmtp.net`
		A	47.74.223.162^{🇸🇬 Alibaba-Cloud47.74.192.0/18 Alibaba.com Inc. 400 S El Camino Real Suite 400 San Mateo, CA94402 US}
			PTR	`sal605.corpsmtp.net`
		A	138.68.75.175^{🇩🇪 DIGITALOCEAN138.68.64.0/20 DigitalOcean}
			PTR	`inbound-protection-605.corpsmtp.net`
		A	192.241.207.6^{🇺🇸 DIGITALOCEAN192.241.192.0/19 DigitalOcean}
			PTR	`inbound-protection-608.corpsmtp.net`
		A	192.241.217.149^{🇺🇸 DIGITALOCEAN192.241.192.0/19 DigitalOcean}
			PTR	`inbound-protection-609.corpsmtp.net`
		A	206.189.7.78^{🇳🇱 DIGITALOCEAN206.189.0.0/20 DigitalOcean}
			PTR	`inbound-protection-606.corpsmtp.net`
		A	206.189.96.192^{🇳🇱 DIGITALOCEAN206.189.96.0/20 DigitalOcean}
			PTR	`inbound-protection-607.corpsmtp.net`
MX	`cnc.biz-email.net`⁽¹⁵⁾
		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.biz-email.net`⁽²⁰⁾
		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`
TXT	`v=spf1 include:spf.corp-email.com include:spfb.corp-email.com ~all`
TXT	`848178259-212739694`
SOA	`ns1.dnsv4.com`enterprise2dnsadmin@dnspod.com serial=1782694464

`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=1785145497

Subdomains

mail.zhenghai.com

Same first word

zhenghai.com

Similar names

ahziheng.com

zhanghei.cn

zhanghei.com

DNS History

18 records (7 active, 11 former)

●NSns1.dnsv4.com2026-07-03 → 2026-07-27 · 3 obs

○ 2017-12-26 16:23:44
● 2026-07-03 09:59:52
● 2026-07-27 09:54:30

○NSns13.xincache.com2015-08-20 → 2016-04-27 · 4 obs

● 2015-08-20 08:57:06
● 2016-04-27 12:47:22
○ 2016-12-24 13:30:26
○ 2026-07-27 09:54:30

○NSns14.xincache.com2015-08-20 → 2016-04-27 · 4 obs

● 2015-08-20 08:57:06
● 2016-04-27 12:47:22
○ 2016-12-24 13:30:26
○ 2026-07-27 09:54:30

○NSns19.xincache.com2016-12-24 → 2017-12-26 · 5 obs

○ 2016-04-27 12:47:22
● 2016-12-24 13:30:26
● 2017-12-26 16:23:44
○ 2026-07-03 09:59:52
○ 2026-07-27 09:54:30

●NSns2.dnsv4.com2026-07-03 → 2026-07-27 · 3 obs

○ 2017-12-26 16:23:44
● 2026-07-03 09:59:52
● 2026-07-27 09:54:30

○NSns20.xincache.com2016-12-24 → 2017-12-26 · 5 obs

○ 2016-04-27 12:47:22
● 2016-12-24 13:30:26
● 2017-12-26 16:23:44
○ 2026-07-03 09:59:52
○ 2026-07-27 09:54:30

○MX218.56.33.2362015-12-05 → 2016-12-24 · 5 obs

○ 2015-08-20 08:57:06
● 2015-12-05 12:16:50
● 2016-12-24 13:30:26
○ 2017-12-26 16:23:44
○ 2026-07-27 09:54:30

○MX218.56.33.2362015-08-20 → 2015-08-20 · 3 obs

● 2015-08-20 08:57:06
○ 2015-12-05 12:16:50
○ 2026-07-27 09:54:30

●MXcnc.biz-email.net2026-07-03 → 2026-07-27 · 3 obs

○ 2017-12-26 16:23:44
● 2026-07-03 09:59:52
● 2026-07-27 09:54:30

○MXex1.zhenghai.com2015-08-20 → 2016-12-24 · 4 obs

● 2015-08-20 08:57:06
● 2016-12-24 13:30:26
○ 2017-12-26 16:23:44
○ 2026-07-27 09:54:30

●MXmail.biz-email.net2026-07-03 → 2026-07-27 · 3 obs

○ 2017-12-26 16:23:44
● 2026-07-03 09:59:52
● 2026-07-27 09:54:30

○MXmail.zhenghai.com2015-08-20 → 2016-12-24 · 4 obs

● 2015-08-20 08:57:06
● 2016-12-24 13:30:26
○ 2017-12-26 16:23:44
○ 2026-07-27 09:54:30

○MXmail01.zhenghai.com2017-12-26 → 2017-12-26 · 4 obs

○ 2016-12-24 13:30:26
● 2017-12-26 16:23:44
○ 2026-07-03 09:59:52
○ 2026-07-27 09:54:30

○MXmail02.zhenghai.com2017-12-26 → 2017-12-26 · 4 obs

○ 2016-12-24 13:30:26
● 2017-12-26 16:23:44
○ 2026-07-03 09:59:52
○ 2026-07-27 09:54:30

●MXzhbio-com.corpsmtp.cn2026-07-03 → 2026-07-27 · 3 obs

○ 2017-12-26 16:23:44
● 2026-07-03 09:59:52
● 2026-07-27 09:54:30

●MXzhbio-com.corpsmtp.net2026-07-03 → 2026-07-27 · 3 obs

○ 2017-12-26 16:23:44
● 2026-07-03 09:59:52
● 2026-07-27 09:54:30

○A121.14.65.2152015-08-20 → 2017-12-26 · 4 obs

● 2015-08-20 08:57:06
● 2017-12-26 16:23:44
○ 2026-07-03 09:59:52
○ 2026-07-27 09:54:30

●A47.105.98.952026-07-03 → 2026-07-27 · 3 obs

○ 2017-12-26 16:23:44
● 2026-07-03 09:59:52
● 2026-07-27 09:54:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net...	-
zhenghai.com	ns1.dnsv4.com, ns2.dnsv4.com	15 records

✅ Authoritative Response

Server:1.12.0.24

NS records: ns1.dnsv4.com, ns2.dnsv4.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zhenghai.com (unsigned zone)

⏱️ Timing

Total: 179ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.105.98.95`
NS	2	`ns2.dnsv4.com, ns1.dnsv4.com`
MX	4	`zhbio-com.corpsmtp.net (pri: 5), zhbio-com.corpsmtp.cn (pri: 10)...`
TXT	2	`848178259-212739694, v=spf1 include:spf.corp-email.com includ`
SOA	1	`ns1.dnsv4.com enterprise2dnsadmin.dnspod`

📌 Glue Records Collected

Total: 15

Out-of-bailiwick: 15 (ns1.dnsv4.com, ns1.dnsv4.com, ns1.dnsv4.com...)

Analysis

Hierarchy

mail.zhenghai.com is delegated beneath zhenghai.com.

IP Addresses

zhenghai.com resolves to just one IP address, 47.105.98.95.

Two other host names, along with www.qimo.com.cn, qimo.com.cn and cent3.com, also share IP numbers with zhenghai.com.

Name Servers

zhenghai.com uses two name servers for its delegation: ns1.dnsv4.com and ns2.dnsv4.com.

zhenghai.com shares its NS records with other domains, for example shm.com.cn, coocaatv.com, wistone.com and two others.

There is at least partial name server overlap between zhenghai.com and other domains — imifun.com, 51bi.com, xafc.com and two more among them.

These name servers frequently co-occur with the name servers f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

DNS names with 8 IP addresses:

Hostname ns2.dnsv4.com directs to 1.12.0.23, 1.12.0.26 and 43.130.172.54 along with 5 other IP addresses.

DNS names with 7 IP addresses:

Hostname ns1.dnsv4.com directs to 1.12.0.24, 1.12.0.25 and 1.13.76.53 along with 4 other IP addresses.

Mail Servers

Mail for zhenghai.com is handled by four mail servers: zhbio-com.corpsmtp.cn, cnc.biz-email.net, mail.biz-email.net and zhbio-com.corpsmtp.net.

There is at least a partial MX overlap between zhenghai.com and other domains, including blyule.com, thelian.com, shang-xia.com and two others.

cdn.corp-email.cn, cdn.corpemail.net, mdn.corp-email.cn and mdn.corpemail.net are mail servers that frequently appear together with these mail servers.

DNS names with 10 IP addresses:

Hostname zhbio-com.corpsmtp.cn directs to 46.101.220.252, 47.74.38.91 and 47.74.38.124 along with 7 other IP addresses.

DNS names with 6 IP addresses:

Hostname zhbio-com.corpsmtp.net directs to 8.219.152.31, 8.219.208.100 and 8.219.223.136 along with 3 other IP addresses.

Hostnames that map to three IP numbers:

The hostname mail.biz-email.net directs to 222.73.234.229, 222.73.234.234 and 222.73.234.236.

Host names that have two IP addresses:

cnc.biz-email.net directs traffic to 210.51.26.140 and 210.51.26.150.

zhenghai.com - robtex.com

zhenghai.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`zhenghai.com`

`com`