`top-science.com.cn`

DNSSEC	⚠️ Not signed
A	27.123.234.179^{🇭🇰 HDHK27.123.234.0/23 Proxy-registered route object}
NS	`dm1.longmingdns.com` ⭐
		A	218.98.111.163^{🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED}
NS	`dm2.longmingdns.com`
		A	183.253.57.197^{🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route)}
		A	211.99.99.56^{🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object}
SOA	`dm1.longmingdns.com`dnsadmin@longmingdns.com serial=1770128616

`com.cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.cn` ⚠️ Not in parent delegation
	NS	`c.dns.cn` ⚠️ Not in parent delegation
	NS	`cns.cernet.net` ⚠️ Not in parent delegation
	NS	`d.dns.cn` ⚠️ Not in parent delegation
	NS	`e.dns.cn` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2030498111

WOT: NOT_SAFE (20/100)

Same first word

top-science.com.cn

Similar names

science-top.com

DNS History

12 records (3 active, 9 former)

●NSdm1.longmingdns.com2026-03-01 → 2026-04-05 · 3 obs

○ 2018-09-09 10:22:04
● 2026-03-01 08:21:06
● 2026-04-05 06:35:06

●NSdm2.longmingdns.com2026-03-01 → 2026-04-05 · 3 obs

○ 2018-09-09 10:22:04
● 2026-03-01 08:21:06
● 2026-04-05 06:35:06

○NSdns.bizcn.com2015-08-25 → 2016-06-05 · 4 obs

● 2015-08-25 00:38:34
● 2016-06-05 14:10:30
○ 2016-09-12 09:36:52
○ 2026-04-05 06:35:06

○NSjuming.dnsdun.com2016-09-12 → 2017-01-22 · 5 obs

○ 2016-06-05 14:10:30
● 2016-09-12 09:36:52
● 2017-01-22 06:44:58
○ 2018-09-09 10:22:04
○ 2026-04-05 06:35:06

○NSjuming.dnsdun.net2016-09-12 → 2017-01-22 · 5 obs

○ 2016-06-05 14:10:30
● 2016-09-12 09:36:52
● 2017-01-22 06:44:58
○ 2018-09-09 10:22:04
○ 2026-04-05 06:35:06

○NSns5.cnmsn.net2015-08-25 → 2016-03-03 · 4 obs

● 2015-08-25 00:38:34
● 2016-03-03 23:11:36
○ 2016-09-12 09:36:52
○ 2026-04-05 06:35:06

○NSns6.cnmsn.net2015-08-25 → 2016-03-03 · 4 obs

● 2015-08-25 00:38:34
● 2016-03-03 23:11:36
○ 2016-09-12 09:36:52
○ 2026-04-05 06:35:06

○MXcmx32.71e.com2015-08-25 → 2016-03-14 · 4 obs

● 2015-08-25 00:38:34
● 2016-03-14 14:47:22
○ 2016-09-12 09:36:52
○ 2026-04-05 06:35:06

○A204.13.69.22015-08-25 → 2015-08-25 · 3 obs

● 2015-08-25 00:38:34
○ 2015-11-21 13:57:04
○ 2026-04-05 06:35:06

●A27.123.234.1792026-03-01 → 2026-04-05 · 3 obs

○ 2018-09-09 10:22:04
● 2026-03-01 08:21:06
● 2026-04-05 06:35:06

○A58.96.189.662015-11-21 → 2016-06-05 · 5 obs

○ 2015-08-25 00:38:34
● 2015-11-21 13:57:04
● 2016-06-05 14:10:30
○ 2016-09-12 09:36:52
○ 2026-04-05 06:35:06

○A72.46.129.1622016-09-12 → 2017-01-22 · 5 obs

○ 2016-06-05 14:10:30
● 2016-09-12 09:36:52
● 2017-01-22 06:44:58
○ 2018-09-09 10:22:04
○ 2026-04-05 06:35:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
top-science.com.cn	dm1.longmingdns.com, dm2.longmingdns.com	-

✅ Authoritative Response

Server:211.99.99.56

NS records: dm1.longmingdns.com, dm2.longmingdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for top-science.com.cn (unsigned zone)

⏱️ Timing

Total: 4825ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`154.93.139.86`
NS	2	`dm1.longmingdns.com, dm2.longmingdns.com`
SOA	1	`dm1.longmingdns.com dnsadmin.longmingdns`

Analysis

IP Addresses

top-science.com.cn points to IP number: 27.123.234.179.

Name Servers

top-science.com.cn is delegated to two name servers: dm1.longmingdns.com and dm2.longmingdns.com.

top-science.com.cn shares the same name server setup as gvdzlna.cn, honormotors.cn, zrvv.cn, meiface.cn and luubi.cn.

Host names with two IP numbers:

dm2.longmingdns.com points to 183.253.57.197 and 211.99.99.56.

Host names with one IP number:

dm1.longmingdns.com points to 218.98.111.163.

top-science.com.cn - robtex.com