robotlearning.cn - dns.ninja

`robotlearning.cn`

DNSSEC	⚠️ Not signed
NS	`dns3.hichina.com` ⭐
		A	2408:4009:501::11^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.63^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.213^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.63^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.113^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.123^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns4.hichina.com`
		A	2408:4009:501::12^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.44^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.54^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.204^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.214^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.44^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.54^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.114^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.124^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
SOA	`dns3.hichina.com`hostmaster@hichina.com 2026-03-31 #16

`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=2034977532

Same first word

robotlearning.cn

Similar names

learningrobot.com

learningrobot.org

DNS History

10 records (2 active, 8 former)

●NSdns3.hichina.com2026-03-23 → 2026-06-28 · 3 obs

○ 2020-01-13 09:26:46
● 2026-03-23 17:53:24
● 2026-06-28 01:45:42

●NSdns4.hichina.com2026-03-23 → 2026-06-28 · 3 obs

○ 2020-01-13 09:26:46
● 2026-03-23 17:53:24
● 2026-06-28 01:45:42

○NSexpirens3.hichina.com2026-03-23 → 2026-03-30 · 5 obs

○ 2020-01-13 09:26:46
● 2026-03-23 17:53:24
● 2026-03-30 17:24:02
○ 2026-06-10 14:19:26
○ 2026-06-28 01:45:42

○NSexpirens4.hichina.com2026-03-23 → 2026-03-30 · 5 obs

○ 2020-01-13 09:26:46
● 2026-03-23 17:53:24
● 2026-03-30 17:24:02
○ 2026-06-10 14:19:26
○ 2026-06-28 01:45:42

○NSf1g1ns1.dnspod.net2017-02-13 → 2017-02-13 · 3 obs

● 2017-02-13 15:29:28
○ 2020-01-13 09:26:46
○ 2026-06-28 01:45:42

○NSf1g1ns2.dnspod.net2017-02-13 → 2017-02-13 · 3 obs

● 2017-02-13 15:29:28
○ 2020-01-13 09:26:46
○ 2026-06-28 01:45:42

○NSjm1.dns.com2020-01-13 → 2020-01-13 · 4 obs

○ 2017-02-13 15:29:28
● 2020-01-13 09:26:46
○ 2026-03-23 17:53:24
○ 2026-06-28 01:45:42

○NSjm2.dns.com2020-01-13 → 2020-01-13 · 4 obs

○ 2017-02-13 15:29:28
● 2020-01-13 09:26:46
○ 2026-03-23 17:53:24
○ 2026-06-28 01:45:42

○A118.24.68.1922020-01-13 → 2020-01-13 · 3 obs

● 2020-01-13 09:26:46
○ 2026-03-23 17:53:24
○ 2026-06-28 01:45:42

○CNAMEexpired.hichina.com2026-03-23 → 2026-03-30 · 4 obs

● 2026-03-23 17:53:24
● 2026-03-30 17:24:02
○ 2026-06-10 14:19:26
○ 2026-06-28 01:45:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	d.dns.cn, c.dns.cn, a.dns.cn, b.dns.cn...	-
robotlearning.cn	dns3.hichina.com, dns4.hichina.com	-

✅ Authoritative Response

Server:39.96.153.44

NS records: dns3.hichina.com, dns4.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for robotlearning.cn (unsigned zone)

⏱️ Timing

Total: 1710ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns3.hichina.com, dns4.hichina.com`
SOA	1	`dns3.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

robotlearning.cn has two authoritative name servers — dns3.hichina.com and dns4.hichina.com.

robotlearning.cn uses the same name servers as several other domains — among them fjzsbw.com, cditdl.cn, atypec.com and two more.

robotlearning.cn partially shares its NS delegation with several other domains, including musicislife.xyz, 12321.cn, kkcjn.com and two others.

The name servers expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com are often found in use alongside these name servers.

Hostnames that resolve to 9 IP addresses:

dns3.hichina.com points to 39.96.153.43, 39.96.153.63, 47.118.199.203 and 6 other IP addresses.

dns4.hichina.com points to 39.96.153.44, 39.96.153.54, 47.118.199.204 and 6 other IP addresses.