`optimalstone.com`

DNSSEC	⚠️ Not signed
A	8.218.210.166^{🇭🇰 Alibaba-Cloud8.218.128.0/17 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
NS	`ns1.72dns.com` ⭐
		A	218.98.111.155^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`ns2.idc1.cn`
		A	183.253.57.223^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.41^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
SOA	`ns1.72dns.com`admin@72dns.com serial=1751342662

`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=1776056727

Same first word

optimalstone.com

Similar names

pitlanemotos.com

metaloptions.com.au

tomasnetopil.com

topalimentos.com

DNS History

7 records (5 active, 2 former)

●NSns1.72dns.com2016-12-17 → 2026-04-13 · 2 obs

● 2016-12-17 05:59:42
● 2026-04-13 05:28:50

●NSns2.idc1.cn2016-12-17 → 2026-04-13 · 4 obs

● 2016-12-17 05:59:42
○ 2017-11-15 01:56:06
● 2026-03-30 11:34:16
● 2026-04-13 05:28:50

●MXmxbiz1.qq.com2016-12-17 → 2026-04-13 · 2 obs

● 2016-12-17 05:59:42
● 2026-04-13 05:28:50

●MXmxbiz2.qq.com2016-12-17 → 2026-04-13 · 2 obs

● 2016-12-17 05:59:42
● 2026-04-13 05:28:50

○A111.68.8.1102016-12-17 → 2016-12-17 · 3 obs

● 2016-12-17 05:59:42
○ 2017-11-15 01:56:06
○ 2026-04-13 05:28:50

○A180.178.45.2462017-11-15 → 2017-11-15 · 4 obs

○ 2016-12-17 05:59:42
● 2017-11-15 01:56:06
○ 2026-03-30 11:34:16
○ 2026-04-13 05:28:50

●A8.218.210.1662026-03-30 → 2026-04-13 · 3 obs

○ 2017-11-15 01:56:06
● 2026-03-30 11:34:16
● 2026-04-13 05:28:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net...	-
optimalstone.com	ns1.72dns.com, ns2.idc1.cn	1 record

✅ Authoritative Response

Server:183.253.57.223

NS records: ns1.72dns.com, ns2.idc1.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optimalstone.com (unsigned zone)

⏱️ Timing

Total: 4927ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`8.218.210.166`
NS	2	`ns1.72dns.com, ns2.idc1.cn`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
TXT	1	`v=spf1 include:spf.mail.qq.com ~all`
SOA	1	`ns1.72dns.com admin.72dns.com`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns1.72dns.com)

Analysis

IP Addresses

optimalstone.com points to a single IP address: 8.218.210.166.

Name Servers

Two name servers ns2.idc1.cn and ns1.72dns.com handle the delegation for optimalstone.com.

optimalstone.com shares the same name server setup as other domains, for example xlstagelight.com, yycaiwu.cn, qhjjhotel.com, zhichengs.com and hcindustries.com.cn.

optimalstone.com partially shares name servers with other domains, for example 137122.com and zjsprings.cn.

these name servers are commonly used alongside ns2.72dns.com name servers.

Host names with two IP numbers:

ns2.idc1.cn points to 183.253.57.223 and 211.99.99.41.

Host names with one IP number:

ns1.72dns.com points to 218.98.111.155.

Mail Servers

Two mail servers handle optimalstone.com: mxbiz1.qq.com and mxbiz2.qq.com.

optimalstone.com shares the same mail server setup as other domains, including ios.com.cn, fairlion.com, cdzyj.com, gm2x.com and zuosheng.com.

optimalstone.com shares at least partially some mail servers with other domains, for instance nbhysj.com, fszxyy.com, 51ad.com, yantaiyifang.com and zhzgcs.cn.

optimalstone.com - robtex.com