`51elearning.org.cn`

DNSSEC	⚠️ Not signed
A	103.142.103.108^{🇨🇳 CLOUDIE-AS-AP103.142.103.0/24}
		PTR	`spk.laws.ms`
NS	`ns1.julydns.com` ⭐ ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.julydns.com` ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
SOA	`ns1.julydns.com`master@jmdns.com serial=1765044732

`org.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=2027857181

WOT: SAFE (27/100)

Same first word

51elearning.org.cn

51elearning.com.cn

DNS History

8 records (5 active, 3 former)

○NSdns17.hichina.com2015-08-11 → 2019-04-11 · 4 obs

● 2015-08-11 21:04:52
● 2019-04-11 20:17:30
○ 2026-05-14 09:12:30
○ 2026-05-18 07:00:26

○NSdns18.hichina.com2015-08-11 → 2019-04-11 · 4 obs

● 2015-08-11 21:04:52
● 2019-04-11 20:17:30
○ 2026-05-14 09:12:30
○ 2026-05-18 07:00:26

●NSns1.judns.com2026-05-14 → 2026-05-18 · 3 obs

○ 2019-04-11 20:17:30
● 2026-05-14 09:12:30
● 2026-05-18 07:00:26

●NSns1.julydns.com2026-05-14 → 2026-05-18 · 3 obs

○ 2019-04-11 20:17:30
● 2026-05-14 09:12:30
● 2026-05-18 07:00:26

●NSns2.judns.com2026-05-14 → 2026-05-18 · 3 obs

○ 2019-04-11 20:17:30
● 2026-05-14 09:12:30
● 2026-05-18 07:00:26

●NSns2.julydns.com2026-05-14 → 2026-05-18 · 3 obs

○ 2019-04-11 20:17:30
● 2026-05-14 09:12:30
● 2026-05-18 07:00:26

●A103.142.103.1082026-05-14 → 2026-05-18 · 3 obs

○ 2019-04-11 20:17:30
● 2026-05-14 09:12:30
● 2026-05-18 07:00:26

○A211.153.23.532015-08-11 → 2019-04-11 · 4 obs

● 2015-08-11 21:04:52
● 2019-04-11 20:17:30
○ 2026-05-14 09:12:30
○ 2026-05-18 07:00:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
51elearning.org.cn	ns1.judns.com, ns2.judns.com	-

✅ Authoritative Response

Server:162.159.27.251

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51elearning.org.cn (unsigned zone)

⏱️ Timing

Total: 1526ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.142.103.108`
NS	2	`ns1.julydns.com, ns2.julydns.com`
SOA	1	`ns1.julydns.com master.jmdns.com`

Analysis

IP Addresses

51elearning.org.cn points to one IP number: 103.142.103.108.

Other host names, for instance bontray.cn, cashfans.cn, www.bontray.cn and wxchenghui.com share IP numbers with 51elearning.org.cn.

Name Servers

51elearning.org.cn is delegated to four name servers, ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

51elearning.org.cn at least partially shares name servers with other domains, for instance eutvc.cn, xmfulun.com, huiancaiwu.com and 2 other.

The host names ns1.judns.com, ns2.judns.com, ns1.julydns.com, ns2.julydns.com each point to one IP number: ns1.judns.com points to 162.159.27.251. ns2.judns.com points to 162.159.27.251. ns1.julydns.com points to 162.159.48.223. ns2.julydns.com points to 162.159.48.223.

Host names that point to 162.159.27.251 : ns1.judns.com and ns2.judns.com.

Host names that point to 162.159.48.223 : ns1.julydns.com and ns2.julydns.com.

51elearning.org.cn - robtex.com