`edusjtu.com`

DNSSEC	⚠️ Not signed
NS	`dns19.hichina.com` ⭐
		A	2408:4009:501::27^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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	139.224.142.110^{🇨🇳 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	`dns20.hichina.com`
		A	2408:4009:501::28^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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	139.224.142.108^{🇨🇳 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	`mxn.mxhichina.com` ⭐
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
MX	`mxw.mxhichina.com`⁽¹⁰⁾
		A	47.246.99.195^{🇺🇸 Alibaba-Cloud47.246.96.0/22 Proxy-registered route object}
			PTR	`reachsmartdwell.com`
TXT	`v=spf1 include:spf.mxhichina.com -all`
SOA	`dns19.hichina.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=1774518757

Same first word

edusjtu.com

Similar names

sjtuedu.com.cn

justedu.com.sg

sjtuedu.org

sjtuedu.net

justedu.com.hk

justedu.tech

edjutsu.com

justedu.com

justedu.co.uk

DNS History

9 records (4 active, 5 former)

●NSdns19.hichina.com2015-06-18 → 2026-03-26 · 5 obs

● 2015-06-18 14:34:30
● 2016-04-25 13:08:28
○ 2017-04-06 18:22:30
● 2020-04-08 23:03:58
● 2026-03-26 10:14:02

●NSdns20.hichina.com2015-06-18 → 2026-03-26 · 5 obs

● 2015-06-18 14:34:30
● 2016-04-25 13:08:28
○ 2017-04-06 18:22:30
● 2020-04-08 23:03:58
● 2026-03-26 10:14:02

○NSf1g1ns1.dnspod.net2017-04-06 → 2017-04-06 · 4 obs

○ 2016-04-25 13:08:28
● 2017-04-06 18:22:30
○ 2020-04-08 23:03:58
○ 2026-03-26 10:14:02

○NSf1g1ns2.dnspod.net2017-04-06 → 2017-04-06 · 4 obs

○ 2016-04-25 13:08:28
● 2017-04-06 18:22:30
○ 2020-04-08 23:03:58
○ 2026-03-26 10:14:02

○MXmxbiz1.qq.com2017-04-06 → 2020-04-08 · 3 obs

● 2017-04-06 18:22:30
● 2020-04-08 23:03:58
○ 2026-03-26 10:14:02

○MXmxbiz2.qq.com2017-04-06 → 2020-04-08 · 3 obs

● 2017-04-06 18:22:30
● 2020-04-08 23:03:58
○ 2026-03-26 10:14:02

●MXmxn.mxhichina.com2026-03-26 → 2026-03-26 · 2 obs

○ 2020-04-08 23:03:58
● 2026-03-26 10:14:02

●MXmxw.mxhichina.com2026-03-26 → 2026-03-26 · 2 obs

○ 2020-04-08 23:03:58
● 2026-03-26 10:14:02

○A219.136.242.1152015-06-18 → 2017-04-06 · 4 obs

● 2015-06-18 14:34:30
● 2017-04-06 18:22:30
○ 2020-04-08 23:03:58
○ 2026-03-26 10:14:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
edusjtu.com	dns19.hichina.com, dns20.hichina.com	18 records

✅ Authoritative Response

Server:2408:4009:501::27

NS records: dns19.hichina.com, dns20.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for edusjtu.com (unsigned zone)

⏱️ Timing

Total: 3132ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns20.hichina.com, dns19.hichina.com`
MX	2	`mxn.mxhichina.com (pri: 5), mxw.mxhichina.com (pri: 10)`
TXT	1	`v=spf1 include:spf.mxhichina.com -all`
SOA	1	`dns19.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns19.hichina.com, dns19.hichina.com, dns19.hichina.com...)

Analysis

Name Servers

edusjtu.com's delegation uses two name servers, dns19.hichina.com and dns20.hichina.com.

edusjtu.com shares the same name server setup as other domains, for example 5iunis.mobi, cssf.com.cn, 6633666.com, domogame.com and shopin.cn.

edusjtu.com shares some name servers with other domains, such as oegy.cn, xcxxsz.com, gccoin.cn and ztyx.com.

These name servers are commonly used with expirens3.hichina.com and expirens4.hichina.com.

dns19.hichina.com points to: 2408:4009:501::27, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110.

dns20.hichina.com points to: 2408:4009:501::28, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.

Mail Servers

edusjtu.com is handled by two mail servers: mxn.mxhichina.com and mxw.mxhichina.com.

edusjtu.com shares its mail server setup with other domains, including qydxc.com, tzei.cn, feelaliveliquid.com, app315.net and haixiuyizhan.com.

The mail servers for edusjtu.com are shared with other domains, for instance lacchina.net, lohotape.com, qianqiou.com, yuncorp.com and huayueyinye.com.

These mail servers are often used together with mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

Hosts with two IPs:

mxn.mxhichina.com points to 47.246.136.231 and 47.246.137.47.

Hosts with one IP:

mxw.mxhichina.com points to 47.246.99.195.

edusjtu.com - robtex.com

edusjtu.com

com