`021learning.com`

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}
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}
		A	39.96.153.55^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.205^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.215^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.45^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.55^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		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,}
		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,}
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}
		A	39.96.153.56^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.206^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.216^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.46^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.56^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		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,}
		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,}
SOA	`ns1.alidns.com`hostmaster@hichina.com 2026-01-09 #13

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774733847

⚠️ On DNS blocklist: light, multi, pro, pro.plus, tif, ultimate

Subdomains

www.021learning.com

Same first word

021learning.com

DNS History

18 records (5 active, 13 former)

○NSdesiree.ns.cloudflare.com2026-02-25 → 2026-03-06 · 5 obs

○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-03-28 21:43:44

○NSdns10.hichina.com2016-12-19 → 2016-12-19 · 3 obs

● 2016-12-19 22:32:28
○ 2017-12-22 00:28:54
○ 2026-03-28 21:43:44

○NSdns9.hichina.com2016-12-19 → 2016-12-19 · 3 obs

● 2016-12-19 22:32:28
○ 2017-12-22 00:28:54
○ 2026-03-28 21:43:44

●NSexpirens3.hichina.com2026-03-16 → 2026-03-28 · 3 obs

○ 2026-03-06 19:25:16
● 2026-03-16 21:05:24
● 2026-03-28 21:43:44

●NSexpirens4.hichina.com2026-03-16 → 2026-03-28 · 3 obs

○ 2026-03-06 19:25:16
● 2026-03-16 21:05:24
● 2026-03-28 21:43:44

○NSmichael.ns.cloudflare.com2026-02-25 → 2026-03-06 · 5 obs

○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-03-28 21:43:44

●NSns7.alidns.com2026-03-16 → 2026-03-28 · 3 obs

○ 2026-03-06 19:25:16
● 2026-03-16 21:05:24
● 2026-03-28 21:43:44

●NSns8.alidns.com2026-03-16 → 2026-03-28 · 3 obs

○ 2026-03-06 19:25:16
● 2026-03-16 21:05:24
● 2026-03-28 21:43:44

○NSvip1.alidns.com2017-12-22 → 2017-12-22 · 4 obs

○ 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-03-28 21:43:44

○NSvip2.alidns.com2017-12-22 → 2017-12-22 · 4 obs

○ 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-03-28 21:43:44

○MXmxn.mxhichina.com2016-12-19 → 2017-12-22 · 4 obs

● 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-03-28 21:43:44

○MXmxw.mxhichina.com2016-12-19 → 2017-12-22 · 4 obs

● 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-03-28 21:43:44

○A104.21.33.2332026-02-25 → 2026-03-06 · 5 obs

○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-03-28 21:43:44

○A139.129.182.192016-12-19 → 2017-12-22 · 4 obs

● 2016-12-19 22:32:28
● 2017-12-22 00:28:54
○ 2026-02-25 13:17:54
○ 2026-03-28 21:43:44

○A172.67.193.1592026-02-25 → 2026-03-06 · 5 obs

○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-03-28 21:43:44

○A2606:4700:3032::6815:21e92026-02-25 → 2026-03-06 · 5 obs

○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-03-28 21:43:44

○A2606:4700:3032::ac43:c19f2026-02-25 → 2026-03-06 · 5 obs

○ 2017-12-22 00:28:54
● 2026-02-25 13:17:54
● 2026-03-06 19:25:16
○ 2026-03-16 21:05:24
○ 2026-03-28 21:43:44

●CNAMEexpired.hichina.com2026-03-16 → 2026-03-28 · 2 obs

● 2026-03-16 21:05:24
● 2026-03-28 21:43:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
021learning.com	expirens3.hichina.com, expirens4.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.33

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 021learning.com (unsigned zone)

⏱️ Timing

Total: 3550ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns8.alidns.com, ns7.alidns.com`
CNAME	1	`expired.hichina.com`
SOA	1	`ns7.alidns.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (expirens3.hichina.com, expirens3.hichina.com, expirens3.hichina.com...)

Analysis

Hierarchy

The parent of www.021learning.com is 021learning.com.

IP Addresses

021learning.com points to three IP numbers: 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 021learning.com.

Name Servers

021learning.com is delegated to two name servers: ns1.alidns.com and ns2.alidns.com.

021learning.com shares the same name server setup as xhanmers.com, 740549f7b10261.beer, 3739de01b10291.beer, miaomubao.com and jchst.com.

021learning.com at least partially shares name servers with other domains, for instance mydec.com, shmsbi.com, xdwi.cn, hmeili.com and aceverse.com.

These name servers are commonly used with ns7.alidns.com, ns8.alidns.com, dns10.hichina.com, dns9.hichina.com, dns1.hichina.com, dns2.hichina.com, dns13.hichina.com, dns31.hichina.com and dns32.hichina.com.

Nine IP numbers per host:

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.

021learning.com - robtex.com

021learning.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`021learning.com`

`com`