learnt.cn - dns.ninja

`learnt.cn`

DNSSEC	⚠️ Not signed
A	208.98.40.225^{🇺🇸 SHARKTECH-1208.98.40.0/24}
NS	`www.learnt.cn` ⭐
		A	208.98.43.94^{🇺🇸 SHARKTECH-1208.98.43.0/24}
			PTR	`mta28.jensenstilbud.com`
NS	`ns1.4.cn` ⚠️ Not in zone NS records
		A	107.167.27.66^{🇺🇸 SHARKTECH-1107.167.27.0/24 CMI (Customer Route)}
NS	`ns2.4.cn` ⚠️ Not in zone NS records
SOA	`www.learnt.cn`learnt@cn 2008-08-03 #0

`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=2035158596

Same first word

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learnt.in

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DNS History

23 records (4 active, 19 former)

●NSns1.4.cn2026-02-16 → 2026-08-09 · 3 obs

○ 2020-03-14 09:39:16
● 2026-02-16 16:08:34
● 2026-08-09 08:38:16

○NSns1.zhanqundns.com2020-03-14 → 2020-03-14 · 4 obs

○ 2016-07-21 14:34:44
● 2020-03-14 09:39:16
○ 2026-02-16 16:08:34
○ 2026-08-09 08:38:16

○NSns10.cdncenter.com2015-08-03 → 2016-07-21 · 4 obs

● 2015-08-03 08:44:20
● 2016-07-21 14:34:44
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

○NSns11.cdncenter.com2015-08-03 → 2016-07-21 · 4 obs

● 2015-08-03 08:44:20
● 2016-07-21 14:34:44
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

○NSns12.cdncenter.com2015-08-03 → 2016-07-21 · 4 obs

● 2015-08-03 08:44:20
● 2016-07-21 14:34:44
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

●NSns2.4.cn2026-02-16 → 2026-08-09 · 3 obs

○ 2020-03-14 09:39:16
● 2026-02-16 16:08:34
● 2026-08-09 08:38:16

○NSns2.zhanqundns.com2020-03-14 → 2020-03-14 · 4 obs

○ 2016-07-21 14:34:44
● 2020-03-14 09:39:16
○ 2026-02-16 16:08:34
○ 2026-08-09 08:38:16

○NSns7.cdncenter.com2015-08-03 → 2016-07-21 · 4 obs

● 2015-08-03 08:44:20
● 2016-07-21 14:34:44
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

○NSns8.cdncenter.com2015-08-03 → 2016-07-21 · 4 obs

● 2015-08-03 08:44:20
● 2016-07-21 14:34:44
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

○NSns9.cdncenter.com2015-08-03 → 2016-07-21 · 4 obs

● 2015-08-03 08:44:20
● 2016-07-21 14:34:44
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

●NSwww.learnt.cn2026-02-16 → 2026-08-09 · 4 obs

○ 2020-03-14 09:39:16
● 2026-02-16 16:08:34
○ 2026-07-02 03:21:42
● 2026-08-09 08:38:16

○MXmxbiz1.qq.com2015-08-03 → 2016-07-21 · 4 obs

● 2015-08-03 08:44:20
● 2016-07-21 14:34:44
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

○MXmxbiz2.qq.com2015-08-03 → 2016-07-21 · 4 obs

● 2015-08-03 08:44:20
● 2016-07-21 14:34:44
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

○A203.86.9.242015-08-03 → 2016-02-28 · 4 obs

● 2015-08-03 08:44:20
● 2016-02-28 01:24:50
○ 2020-03-14 09:39:16
○ 2026-08-09 08:38:16

○A208.98.40.2022026-02-16 → 2026-03-21 · 6 obs

○ 2020-03-14 09:39:16
● 2026-02-16 16:08:34
○ 2026-03-03 00:58:08
● 2026-03-21 03:08:24
○ 2026-03-29 13:25:40
○ 2026-08-09 08:38:16

●A208.98.40.2252026-08-09 → 2026-08-09 · 2 obs

○ 2026-07-02 03:21:42
● 2026-08-09 08:38:16

○A208.98.40.332026-03-03 → 2026-03-03 · 4 obs

○ 2026-02-16 16:08:34
● 2026-03-03 00:58:08
○ 2026-03-21 03:08:24
○ 2026-08-09 08:38:16

○A208.98.40.402026-02-16 → 2026-08-09 · 2 obs

○ 2026-02-16 16:08:34
○ 2026-08-09 08:38:16

○A208.98.43.142026-06-21 → 2026-06-21 · 4 obs

○ 2026-06-16 11:56:50
● 2026-06-21 12:28:52
○ 2026-06-28 21:17:44
○ 2026-08-09 08:38:16

○A208.98.43.742026-06-16 → 2026-06-16 · 4 obs

○ 2026-03-29 13:25:40
● 2026-06-16 11:56:50
○ 2026-06-21 12:28:52
○ 2026-08-09 08:38:16

○A208.98.43.772026-03-29 → 2026-03-29 · 4 obs

○ 2026-03-21 03:08:24
● 2026-03-29 13:25:40
○ 2026-06-16 11:56:50
○ 2026-08-09 08:38:16

○A208.98.43.922026-06-28 → 2026-06-28 · 4 obs

○ 2026-06-21 12:28:52
● 2026-06-28 21:17:44
○ 2026-07-02 03:21:42
○ 2026-08-09 08:38:16

○A45.15.125.872020-03-14 → 2020-03-14 · 4 obs

○ 2016-02-28 01:24:50
● 2020-03-14 09:39:16
○ 2026-02-16 16:08:34
○ 2026-08-09 08:38:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
learnt.cn	ns1.4.cn, ns2.4.cn	-

✅ Authoritative Response

Server:208.98.43.66

NS records: ns1.4.cn, ns2.4.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for learnt.cn (unsigned zone)

⏱️ Timing

Total: 1551ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`208.98.40.225`
SOA	1	`www.learnt.cn learnt.cn`

Analysis

IP Addresses

learnt.cn has exactly one IP address — 208.98.40.225.

www.www.u2us.7vdy.com, www.000792.cn, www.cansihua.com plus two other host names have IP numbers in common with learnt.cn.

Name Servers

Three name servers are authoritative for learnt.cn: ns1.4.cn, ns2.4.cn and www.learnt.cn.

There is at least partial name server overlap between learnt.cn and other domains — 4321win.com, beautyzone.cn, hndqfs.com and two more among them.

ns1.4.cn → 107.167.27.66 and www.learnt.cn → 208.98.43.94: one IP number per host name.