`tjtopcon.com`

DNSSEC	⚠️ Not signed
A	210.51.187.186^{🇨🇳 CHINA169-BJ210.51.187.0/24}
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}
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=1776106422

Same first word

tjtopcon.com

DNS History

6 records (3 active, 3 former)

○NS(root)2016-12-02 → 2017-06-28 · 5 obs

○ 2015-11-09 12:40:34
● 2016-12-02 16:37:32
● 2017-06-28 19:41:06
○ 2026-03-25 09:29:38
○ 2026-04-13 19:01:58

●NSa.ezdnscenter.com2026-03-25 → 2026-04-13 · 3 obs

○ 2017-06-28 19:41:06
● 2026-03-25 09:29:38
● 2026-04-13 19:01:58

●NSb.ezdnscenter.com2026-03-25 → 2026-04-13 · 3 obs

○ 2017-06-28 19:41:06
● 2026-03-25 09:29:38
● 2026-04-13 19:01:58

○NSns1.51dns.com2015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 08:59:40
○ 2015-11-09 12:40:34
○ 2026-04-13 19:01:58

○A173.208.157.1012015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 08:59:40
○ 2017-06-28 19:41:06
○ 2026-04-13 19:01:58

●A210.51.187.1862016-12-02 → 2026-04-13 · 3 obs

○ 2015-07-04 08:59:40
● 2016-12-02 16:37:32
● 2026-04-13 19:01:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tjtopcon.com	a.ezdnscenter.com, b.ezdnscenter.com	3 records

✅ Authoritative Response

Server:183.253.57.210

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tjtopcon.com (unsigned zone)

⏱️ Timing

Total: 3537ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.51.187.186`
NS	2	`a.ezdnscenter.com, b.ezdnscenter.com`
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

IP Addresses

tjtopcon.com points to an IP address: 210.51.187.186.

other host names include compsun.cn, jinlongjia.com, implove.cn, implove.net and zhenlei.net; they share IP numbers with tjtopcon.com.

Name Servers

Two name servers a.ezdnscenter.com and b.ezdnscenter.com handle the delegation for tjtopcon.com.

tjtopcon.com shares the same name server setup as other domains, for instance zhiyaok.com, xhpc.com, qakd.net, cany.com.cn and zhonghuifa.com.

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.

tjtopcon.com - robtex.com

tjtopcon.com

com