`robotlearning.cn`

CNAME	`expired.hichina.com`
DNSSEC	⚠️ Not signed
A	8.218.208.240^{🇭🇰 Alibaba-Cloud8.218.128.0/17 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		PTR	`ip-8-218-208-240.defastlink.net`
A	47.76.127.217^{🇺🇸 Alibaba-Cloud47.76.0.0/17 Proxy-registered route object}
A	47.91.170.222^{🇭🇰 Alibaba-Cloud47.91.128.0/18 Alibaba Cloud}
NS	`ns1.alidns.com` ⭐ ⚠️ Not in parent delegation
		A	2408:4009:501::1^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.45^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-45.defastlink.net`
		A	39.96.153.55^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-55.defastlink.net`
		A	47.118.199.205^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-205.defastlink.net`
		A	47.118.199.215^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-215.defastlink.net`
		A	120.76.107.45^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-45.defastlink.net`
		A	120.76.107.55^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-55.defastlink.net`
		A	139.224.142.115^{🇨🇳 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,}
			PTR	`ip-139-224-142-115.defastlink.net`
		A	139.224.142.125^{🇨🇳 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,}
			PTR	`ip-139-224-142-125.defastlink.net`
NS	`ns2.alidns.com` ⚠️ Not in parent delegation
		A	2408:4009:501::2^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.46^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-46.defastlink.net`
		A	39.96.153.56^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-56.defastlink.net`
		A	47.118.199.206^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-206.defastlink.net`
		A	47.118.199.216^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-216.defastlink.net`
		A	120.76.107.46^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-46.defastlink.net`
		A	120.76.107.56^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-56.defastlink.net`
		A	139.224.142.116^{🇨🇳 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,}
			PTR	`ip-139-224-142-116.defastlink.net`
		A	139.224.142.126^{🇨🇳 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,}
			PTR	`ip-139-224-142-126.defastlink.net`
SOA	`ns1.alidns.com`hostmaster@hichina.com 2026-01-09 #13

`cn`

	DNSSEC	⚠️ Not signed
	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=2034546407

Same first word

robotlearning.cn

Similar names

learningrobot.com

learningrobot.org

DNS History

10 records (5 active, 5 former)

●NSdns3.hichina.com2026-03-23 → 2026-03-23 · 2 obs

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

●NSdns4.hichina.com2026-03-23 → 2026-03-23 · 2 obs

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

●NSexpirens3.hichina.com2026-03-23 → 2026-03-23 · 2 obs

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

●NSexpirens4.hichina.com2026-03-23 → 2026-03-23 · 2 obs

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

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

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

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

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

○NSjm1.dns.com2020-01-13 → 2020-01-13 · 3 obs

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

○NSjm2.dns.com2020-01-13 → 2020-01-13 · 3 obs

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

○A118.24.68.1922020-01-13 → 2020-01-13 · 2 obs

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

●CNAMEexpired.hichina.com2026-03-23 → 2026-03-23 · 1 obs

● 2026-03-23 17:53:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	d.dns.cn, c.dns.cn, a.dns.cn, b.dns.cn...	-
robotlearning.cn	expirens3.hichina.com, expirens4.hichina.com	-

✅ Authoritative Response

Server:39.96.153.53

NS records: expirens3.hichina.com, expirens4.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for robotlearning.cn (unsigned zone)

⏱️ Timing

Total: 1552ms | Queries: -

📄 Records

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

Analysis

IP Addresses

robotlearning.cn points to three IPs: 8.218.208.240, 47.76.127.217 and 47.91.170.222.

Other host names, for instance expired.hichina.com, share IP numbers with robotlearning.cn.

Name Servers

robotlearning.cn is delegated to two name servers: ns1.alidns.com and ns2.alidns.com.

robotlearning.cn uses the same name server setup as other domains, for instance 15492.com, desc8.com, 91kp-8.com, www7235.com and sagedao.com.

robotlearning.cn shares name servers with other domains at least partially, for instance 97ky22.com, kysz21y.bond, masseywebsiteservices.com, digitalhub.cn and xn--fct24n.com.

These name servers are commonly used with ns7.alidns.com, ns8.alidns.com, dns3.hichina.com and dns4.hichina.com.

Host names with nine IP numbers: ns1.alidns.com points to 2408:4009:501::1, 39.96.153.45, 39.96.153.55, 47.118.199.205, 47.118.199.215, 120.76.107.45, 120.76.107.55, 139.224.142.115 and 139.224.142.125; ns2.alidns.com points to 2408:4009:501::2, 39.96.153.46, 39.96.153.56, 47.118.199.206, 47.118.199.216, 120.76.107.46, 120.76.107.56, 139.224.142.116 and 139.224.142.126.

robotlearning.cn - robtex.com