`richenholding.com`

DNSSEC	⚠️ Not signed
NS	`a.ezdnscenter.com` ⭐
		A	218.98.111.140^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`b.ezdnscenter.com`
		A	183.253.57.210^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.58^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
MX	`mx1.chengmail.cn` ⭐
		A	103.143.231.69^{🇭🇰 YISUCLOUDLTD-HK103.143.231.0/24 Hongkong Hongdou Technology Co., Limited FLAT/RM B07 23/F HOVER INDUSTRIAL BUILDING NO.26-38 KWAI CHEONG ROAO, NT}
		A	113.10.158.179^{🇭🇰 HKBNESL-AS-AP113.10.158.0/24 New World Telecommunications Limited Hong Kong Broadband Network Ltd 15/F, Trans Asia Centre 18 Kin Hong Street, Kwai Chung, N.T.}
MX	`mx2.chengmail.cn`⁽²⁰⁾
		A	103.143.231.69^{🇭🇰 YISUCLOUDLTD-HK103.143.231.0/24 Hongkong Hongdou Technology Co., Limited FLAT/RM B07 23/F HOVER INDUSTRIAL BUILDING NO.26-38 KWAI CHEONG ROAO, NT}
		A	113.10.158.179^{🇭🇰 HKBNESL-AS-AP113.10.158.0/24 New World Telecommunications Limited Hong Kong Broadband Network Ltd 15/F, Trans Asia Centre 18 Kin Hong Street, Kwai Chung, N.T.}
TXT	`v=spf1 include:spf.chengmail.cn ~all`
SOA	`a.ezdnscenter.com`dnsadmin@ezdnscenter.com serial=1751342704

`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=1776914542

Subdomains

www.richenholding.com

Same first word

richenholding.com

DNS History

14 records (4 active, 10 former)

●NSa.ezdnscenter.com2026-04-23 → 2026-04-23 · 3 obs

○ 2017-12-28 07:53:24
● 2026-04-23 03:46:54
● 2026-04-23 03:46:56

●NSb.ezdnscenter.com2026-04-23 → 2026-04-23 · 3 obs

○ 2017-12-28 07:53:24
● 2026-04-23 03:46:54
● 2026-04-23 03:46:56

○NSns1.dns-ez.com2015-05-29 → 2016-12-30 · 4 obs

● 2015-05-29 05:27:30
● 2016-12-30 08:04:04
○ 2017-12-28 07:53:24
○ 2026-04-23 03:46:56

○NSns10.cdncenter.com2017-12-28 → 2017-12-28 · 4 obs

○ 2016-12-30 08:04:04
● 2017-12-28 07:53:24
○ 2026-04-23 03:46:54
○ 2026-04-23 03:46:56

○NSns11.cdncenter.com2017-12-28 → 2017-12-28 · 4 obs

○ 2016-12-30 08:04:04
● 2017-12-28 07:53:24
○ 2026-04-23 03:46:54
○ 2026-04-23 03:46:56

○NSns12.cdncenter.com2017-12-28 → 2017-12-28 · 4 obs

○ 2016-12-30 08:04:04
● 2017-12-28 07:53:24
○ 2026-04-23 03:46:54
○ 2026-04-23 03:46:56

○NSns2.dns-ez.com2015-05-29 → 2016-12-30 · 4 obs

● 2015-05-29 05:27:30
● 2016-12-30 08:04:04
○ 2017-12-28 07:53:24
○ 2026-04-23 03:46:56

○NSns7.cdncenter.com2017-12-28 → 2017-12-28 · 4 obs

○ 2016-12-30 08:04:04
● 2017-12-28 07:53:24
○ 2026-04-23 03:46:54
○ 2026-04-23 03:46:56

○NSns8.cdncenter.com2017-12-28 → 2017-12-28 · 4 obs

○ 2016-12-30 08:04:04
● 2017-12-28 07:53:24
○ 2026-04-23 03:46:54
○ 2026-04-23 03:46:56

○NSns9.cdncenter.com2017-12-28 → 2017-12-28 · 4 obs

○ 2016-12-30 08:04:04
● 2017-12-28 07:53:24
○ 2026-04-23 03:46:54
○ 2026-04-23 03:46:56

○MXmail.richenholding.com2015-05-29 → 2016-12-30 · 4 obs

● 2015-05-29 05:27:30
● 2016-12-30 08:04:04
○ 2017-12-28 07:53:24
○ 2026-04-23 03:46:56

●MXmx1.chengmail.cn2017-12-28 → 2026-04-23 · 3 obs

○ 2016-12-30 08:04:04
● 2017-12-28 07:53:24
● 2026-04-23 03:46:56

●MXmx2.chengmail.cn2017-12-28 → 2026-04-23 · 3 obs

○ 2016-12-30 08:04:04
● 2017-12-28 07:53:24
● 2026-04-23 03:46:56

○A14.1.20.572015-05-29 → 2016-12-30 · 4 obs

● 2015-05-29 05:27:30
● 2016-12-30 08:04:04
○ 2017-12-28 07:53:24
○ 2026-04-23 03:46:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net...	-
richenholding.com	a.ezdnscenter.com, b.ezdnscenter.com	3 records

✅ Authoritative Response

Server:218.98.111.140

NS records: a.ezdnscenter.com, b.ezdnscenter.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for richenholding.com (unsigned zone)

⏱️ Timing

Total: 3626ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`a.ezdnscenter.com, b.ezdnscenter.com`
MX	2	`mx2.chengmail.cn (pri: 20), mx1.chengmail.cn (pri: 10)`
TXT	1	`v=spf1 include:spf.chengmail.cn ~all`
SOA	1	`a.ezdnscenter.com dnsadmin.ezdnscenter.c`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (a.ezdnscenter.com, b.ezdnscenter.com, b.ezdnscenter.com)

Analysis

Hierarchy

richenholding.com is the parent of www.richenholding.com.

Name Servers

richenholding.com has two name servers: a.ezdnscenter.com and b.ezdnscenter.com.

richenholding.com shares the same name server setup as other domains, for example 21918.org, zzfangchan.cn, dylthan.com, cnfure.com and wuhanrc.org.cn.

Host names with two IP numbers: b.ezdnscenter.com points to: 183.253.57.210 and 211.99.99.58.

Host names with one IP number: a.ezdnscenter.com points to: 218.98.111.140.

Mail Servers

richenholding.com is served by two mail servers: mx1.chengmail.cn and mx2.chengmail.cn.

richenholding.com shares the mail server setup with other domains, for example rkmacau.com, joinsn.com, its111.com, bcase.net and labhospital.com.

richenholding.com shares some mail servers with other domains, at least partially; for instance hirun-tech.com, 360cn.cn, arvr.cn, xnpfs.com and phonetrans.com.

Host names with two IP numbers: mx1.chengmail.cn and mx2.chengmail.cn point to 103.143.231.69 and 113.10.158.179. Host names that point to 103.143.231.69: mx1.chengmail.cn and mx2.chengmail.cn. Host names that point to 113.10.158.179: mx1.chengmail.cn and mx2.chengmail.cn.

richenholding.com - robtex.com