linuxhelp.cn - dns.ninja

`linuxhelp.cn`

DNSSEC	⚠️ Not signed
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}
SOA	`dm1.longmingdns.com`dnsadmin@longmingdns.com serial=1781093120

`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=2035148490

Same first word

linuxhelp.com

linuxhelp.net

linuxhelp.blogspot.com

linuxhelp.com.ua

linuxhelp.cl

linuxhelp.cn

linuxhelp.com.mx

linuxhelp.it

linuxhelp.gr

linuxhelp.ru

linuxhelp.ir

linuxhelp.no

linuxhelp.cz

linuxhelp.org

linuxhelp.be

Similar names

helplinux.com

lunixhelp.blogspot.com

helplinux.ru

DNS History

13 records (2 active, 11 former)

●NSdm1.longmingdns.com2026-06-03 → 2026-08-06 · 3 obs

○ 2017-07-09 09:17:16
● 2026-06-03 07:22:20
● 2026-08-06 10:33:26

●NSdm2.longmingdns.com2026-06-03 → 2026-08-06 · 3 obs

○ 2017-07-09 09:17:16
● 2026-06-03 07:22:20
● 2026-08-06 10:33:26

○NSdns10.hichina.com2015-06-13 → 2016-02-03 · 4 obs

● 2015-06-13 08:49:46
● 2016-02-03 21:45:36
○ 2016-04-18 10:23:32
○ 2026-08-06 10:33:26

○NSdns9.hichina.com2015-06-13 → 2016-02-03 · 4 obs

● 2015-06-13 08:49:46
● 2016-02-03 21:45:36
○ 2016-04-18 10:23:32
○ 2026-08-06 10:33:26

○NSexpirens3.hichina.com2016-04-18 → 2016-04-18 · 4 obs

○ 2016-02-03 21:45:36
● 2016-04-18 10:23:32
○ 2016-11-28 20:38:38
○ 2026-08-06 10:33:26

○NSexpirens4.hichina.com2016-04-18 → 2016-04-18 · 4 obs

○ 2016-02-03 21:45:36
● 2016-04-18 10:23:32
○ 2016-11-28 20:38:38
○ 2026-08-06 10:33:26

○NSf1g1ns1.dnspod.net2017-07-09 → 2017-07-09 · 4 obs

○ 2016-11-28 20:38:38
● 2017-07-09 09:17:16
○ 2026-06-03 07:22:20
○ 2026-08-06 10:33:26

○NSf1g1ns2.dnspod.net2017-07-09 → 2017-07-09 · 4 obs

○ 2016-11-28 20:38:38
● 2017-07-09 09:17:16
○ 2026-06-03 07:22:20
○ 2026-08-06 10:33:26

○A0.0.0.02016-02-03 → 2016-02-03 · 3 obs

● 2016-02-03 21:45:36
○ 2016-04-18 10:23:32
○ 2026-08-06 10:33:26

○A42.120.158.782016-04-18 → 2016-04-18 · 4 obs

○ 2016-02-03 21:45:36
● 2016-04-18 10:23:32
○ 2016-11-28 20:38:38
○ 2026-08-06 10:33:26

○A45.194.214.1182026-06-03 → 2026-08-06 · 2 obs

○ 2026-06-03 07:22:20
○ 2026-08-06 10:33:26

○A45.199.27.2002026-06-03 → 2026-06-03 · 4 obs

○ 2016-11-28 20:38:38
● 2026-06-03 07:22:20
○ 2026-06-17 15:42:24
○ 2026-08-06 10:33:26

○CNAMEcnlinuxhelp.imwork.net2016-02-03 → 2016-02-03 · 3 obs

● 2016-02-03 21:45:36
○ 2016-04-18 10:23:32
○ 2026-08-06 10:33:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, b.dns.cn, c.dns.cn...	-
linuxhelp.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 linuxhelp.cn (unsigned zone)

⏱️ Timing

Total: 4643ms | Queries: -

📄 Records

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

Analysis

Name Servers

linuxhelp.cn has two authoritative name servers — dm1.longmingdns.com and dm2.longmingdns.com.

linuxhelp.cn shares its name server setup with other domains, including poem-press.com, bycu.cn, wobook.cn and two others.

The name servers for linuxhelp.cn overlap at least partially with those of other domains — for example 1277img.com.

Host names with two IP numbers:

dm2.longmingdns.com resolves to 183.253.57.197 and 211.99.99.56.

Host names pointing to a single IP address:

dm1.longmingdns.com resolves to 218.98.111.163.