educn.com - dns.ninja

`educn.com`

DNSSEC	⚠️ Not signed
A	223.6.251.167^{🇨🇳 Alibaba-Cloud223.6.128.0/17}
NS	`dns1.hichina.com` ⭐
		A	2408:4009:501::9^{🇨🇳 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	`dns2.hichina.com`
		A	2408:4009:501::10^{🇨🇳 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,}
MX	`hzmx01.mxmail.netease.com` ⭐
		A	8.209.70.223^{🇩🇪 Alibaba-Cloud8.209.64.0/19 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	8.209.88.255^{🇩🇪 Alibaba-Cloud8.209.64.0/19 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
MX	`hzmx02.mxmail.netease.com`⁽¹⁰⁾
		A	8.209.70.223^{🇩🇪 Alibaba-Cloud8.209.64.0/19 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	8.209.88.255^{🇩🇪 Alibaba-Cloud8.209.64.0/19 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
TXT	`v=spf1 include:spf.163.com -all`
SOA	`dns1.hichina.com`hostmaster@hichina.com 2026-06-04 #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=1781323403

Same first word

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DNS History

15 records (5 active, 10 former)

●NSdns1.hichina.com2007-11-08 → 2026-06-13 · 5 obs

● 2007-11-08 02:55:44
○ 2015-07-24 09:16:50
○ 2017-03-13 18:27:46
● 2026-02-18 09:58:06
● 2026-06-13 04:08:42

○NSdns10.hichina.com2016-06-23 → 2017-03-13 · 5 obs

○ 2016-02-12 07:59:36
● 2016-06-23 12:12:40
● 2017-03-13 18:27:46
○ 2026-02-18 09:58:06
○ 2026-06-13 04:08:42

●NSdns2.hichina.com2007-11-08 → 2026-06-13 · 5 obs

● 2007-11-08 02:55:44
○ 2015-07-24 09:16:50
○ 2017-03-13 18:27:46
● 2026-02-18 09:58:06
● 2026-06-13 04:08:42

○NSdns9.hichina.com2016-06-23 → 2017-03-13 · 5 obs

○ 2016-02-12 07:59:36
● 2016-06-23 12:12:40
● 2017-03-13 18:27:46
○ 2026-02-18 09:58:06
○ 2026-06-13 04:08:42

○NSns41.domaincontrol.com2015-07-24 → 2016-02-12 · 5 obs

○ 2007-11-08 02:55:44
● 2015-07-24 09:16:50
● 2016-02-12 07:59:36
○ 2016-06-23 12:12:40
○ 2026-06-13 04:08:42

○NSns42.domaincontrol.com2015-07-24 → 2016-02-12 · 5 obs

○ 2007-11-08 02:55:44
● 2015-07-24 09:16:50
● 2016-02-12 07:59:36
○ 2016-06-23 12:12:40
○ 2026-06-13 04:08:42

●MXhzmx01.mxmail.netease.com2026-02-18 → 2026-06-13 · 3 obs

○ 2016-06-23 12:12:40
● 2026-02-18 09:58:06
● 2026-06-13 04:08:42

●MXhzmx02.mxmail.netease.com2026-02-18 → 2026-06-13 · 3 obs

○ 2016-06-23 12:12:40
● 2026-02-18 09:58:06
● 2026-06-13 04:08:42

○MXmail.educn.com2007-11-08 → 2007-11-08 · 3 obs

● 2007-11-08 02:55:44
○ 2015-07-24 09:16:50
○ 2026-06-13 04:08:42

○MXmxn.mxhichina.com2015-07-24 → 2016-02-12 · 5 obs

○ 2007-11-08 02:55:44
● 2015-07-24 09:16:50
● 2016-02-12 07:59:36
○ 2016-06-23 12:12:40
○ 2026-06-13 04:08:42

○MXmxw.mxhichina.com2015-07-24 → 2016-02-12 · 5 obs

○ 2007-11-08 02:55:44
● 2015-07-24 09:16:50
● 2016-02-12 07:59:36
○ 2016-06-23 12:12:40
○ 2026-06-13 04:08:42

○A115.29.248.1032015-07-24 → 2016-02-12 · 5 obs

○ 2007-11-08 02:55:44
● 2015-07-24 09:16:50
● 2016-02-12 07:59:36
○ 2016-06-23 12:12:40
○ 2026-06-13 04:08:42

○A121.41.80.1632016-06-23 → 2017-03-13 · 5 obs

○ 2016-02-12 07:59:36
● 2016-06-23 12:12:40
● 2017-03-13 18:27:46
○ 2026-02-18 09:58:06
○ 2026-06-13 04:08:42

●A223.6.251.1672026-02-18 → 2026-06-13 · 3 obs

○ 2017-03-13 18:27:46
● 2026-02-18 09:58:06
● 2026-06-13 04:08:42

○A61.50.138.2142007-11-08 → 2007-11-08 · 3 obs

● 2007-11-08 02:55:44
○ 2015-07-24 09:16:50
○ 2026-06-13 04:08:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net...	-
educn.com	dns2.hichina.com, dns1.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.44

NS records: dns2.hichina.com, dns1.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for educn.com (unsigned zone)

⏱️ Timing

Total: 783ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`223.6.251.167`
NS	2	`dns1.hichina.com, dns2.hichina.com`
MX	2	`hzmx02.mxmail.netease.com (pri: 10), hzmx01.mxmail.netease.com (pri: 5)`
TXT	1	`v=spf1 include:spf.163.com -all`
SOA	1	`dns1.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns2.hichina.com, dns2.hichina.com, dns2.hichina.com...)

Analysis

IP Addresses

educn.com resolves to one IP address: 223.6.251.167.

Name Servers

educn.com has two authoritative name servers — dns1.hichina.com and dns2.hichina.com.

educn.com uses the same name servers as several other domains — among them swap.cn, jxjdcjc.com, bicmai.com.cn and two more.

educn.com has at least partial name server overlap with other domains, such as kablinglancable.com, nujiangfy.gov.cn, simayun.com and two others.

It is common to find these name servers paired with the name servers ns1.alidns.com, ns2.alidns.com, expirens3.hichina.com and expirens4.hichina.com.

Hostnames that resolve to 9 IP addresses:

dns1.hichina.com points to 39.96.153.43, 39.96.153.63, 47.118.199.203 and 6 other IP addresses.

dns2.hichina.com points to 39.96.153.44, 39.96.153.54, 47.118.199.204 and 6 other IP addresses.

Mail Servers

Mail for educn.com is handled by two mail servers — hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com.

educn.com uses an identical mail server configuration to several other domains — among them shaibu.com, shxj.edu.cn, g-cnc.com and two more.

The mail servers of educn.com overlap at least partially with those of other domains, including ecorepack.com, htsm.com and yangze.net.

Both hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com point to 8.209.70.223 and 8.209.88.255.

The host names hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com both resolve to 8.209.70.223 IP addresses.

The host names hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com both resolve to 8.209.88.255 IP addresses.