`rdchem.cn`

DNSSEC	⚠️ Not signed
A	203.107.45.167^{🇨🇳 Alibaba-Cloud203.107.45.0/24 Alibaba (US) Technology Co., Ltd.}
		PTR	`catl.com`
NS	`dns9.hichina.com` ⭐
		A	2408:4009:501::17^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 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	139.224.142.122^{🇨🇳 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	`dns10.hichina.com`
		A	2408:4009:501::18^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 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	139.224.142.121^{🇨🇳 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	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
SOA	`dns9.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`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=2035104248

Subdomains

mail.rdchem.cn

Same first word

rdchem.cn

rdchem.com

Similar names

redhcm.com

drchem.com

chrmed.com

hrcmed.com

drchem.net

mcherd.com

dmerch.com

drchem.co.kr

drhecm.com

hcderm.com

merchd.com

mehrdc.com

crhemd.com

drchem.cn

hcrmed.com

hedcrm.com

drmech.com

DNS History

6 records (5 active, 1 former)

●NSdns10.hichina.com2016-03-15 → 2026-07-29 · 2 obs

● 2016-03-15 22:12:52
● 2026-07-29 04:30:48

●NSdns9.hichina.com2016-03-15 → 2026-07-29 · 2 obs

● 2016-03-15 22:12:52
● 2026-07-29 04:30:48

●MXmxbiz1.qq.com2016-03-15 → 2026-07-29 · 5 obs

● 2016-03-15 22:12:52
● 2026-03-27 03:44:58
○ 2026-07-29 02:44:16
● 2026-07-29 04:30:46
● 2026-07-29 04:30:48

●MXmxbiz2.qq.com2016-03-15 → 2026-07-29 · 5 obs

● 2016-03-15 22:12:52
● 2026-03-27 03:44:58
○ 2026-07-29 02:44:16
● 2026-07-29 04:30:46
● 2026-07-29 04:30:48

○A139.129.190.2442016-07-10 → 2017-09-04 · 4 obs

● 2016-07-10 05:17:40
● 2017-09-04 18:50:10
○ 2026-03-27 03:44:58
○ 2026-07-29 04:30:48

●A203.107.45.1672026-03-27 → 2026-07-29 · 5 obs

○ 2017-09-04 18:50:10
● 2026-03-27 03:44:58
○ 2026-07-29 02:44:16
● 2026-07-29 04:30:46
● 2026-07-29 04:30:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
rdchem.cn	dns9.hichina.com, dns10.hichina.com	-

✅ Authoritative Response

Server:120.76.107.52

NS records: dns9.hichina.com, dns10.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rdchem.cn (unsigned zone)

⏱️ Timing

Total: 1774ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.107.45.167`
NS	2	`dns9.hichina.com, dns10.hichina.com`
MX	2	`mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5)`
TXT	1	`v=spf1 include:spf.mail.qq.com ~all`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

Analysis

Hierarchy

mail.rdchem.cn is a subdomain of rdchem.cn.

IP Addresses

rdchem.cn points to a single IP number: 203.107.45.167.

Additional host names — u369.com, haomaixingli.cn, jinbook.com and two others — share IP numbers with rdchem.cn.

Name Servers

DNS delegation for rdchem.cn points to two name servers: dns10.hichina.com and dns9.hichina.com.

rdchem.cn shares its name server setup with other domains, including szmedica.com, calgoncarbon-china.com, jgcyjt.com and two others.

rdchem.cn has some name servers in common with other domains such as luvhub.com, opi.cn and guipeng.com

These name servers commonly appear alongside the name servers ns1.alidns.com and ns2.alidns.com.

Host names with 9 IP numbers:

dns10.hichina.com has IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, plus 6 other.

dns9.hichina.com has IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, plus 6 other.

Mail Servers

rdchem.cn has two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

rdchem.cn shares the same mail server setup as other domains, including raybowlaser.com, anaiger.com, hexaunion.com and two others.

rdchem.cn partially shares its mail servers with other domains — including ziwhej-tw.asia, notecoupons.com, yu-long.com and nianpengli.com.

rdchem.cn - robtex.com

rdchem.cn

cn