`bystudent.com`

DNSSEC	⚠️ Not signed
NS	`dns9.hichina.com` ⭐
		A	2408:4009:501::17^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 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	139.224.142.122^{🇨🇳 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	`dns10.hichina.com`
		A	2408:4009:501::18^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 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	139.224.142.121^{🇨🇳 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	`dns9.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`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=1784545202

Same first word

bystudent.com

DNS History

7 records (4 active, 3 former)

●NSdns10.hichina.com2015-07-23 → 2026-07-20 · 2 obs

● 2015-07-23 06:33:04
● 2026-07-20 11:22:54

●NSdns9.hichina.com2015-07-23 → 2026-07-20 · 2 obs

● 2015-07-23 06:33:04
● 2026-07-20 11:22:54

●MXmxn.mxhichina.com2015-07-23 → 2026-07-20 · 2 obs

● 2015-07-23 06:33:04
● 2026-07-20 11:22:54

●MXmxw.mxhichina.com2015-07-23 → 2026-07-20 · 2 obs

● 2015-07-23 06:33:04
● 2026-07-20 11:22:54

○A139.129.23.1812015-11-22 → 2017-03-18 · 7 obs

○ 2015-07-23 06:33:04
● 2015-11-22 20:26:20
● 2016-03-15 18:14:50
○ 2016-07-13 19:30:16
● 2017-03-18 15:36:14
○ 2020-01-05 09:10:24
○ 2026-07-20 11:22:54

○A176.126.68.1052016-07-13 → 2016-07-13 · 4 obs

○ 2016-03-15 18:14:50
● 2016-07-13 19:30:16
○ 2017-03-18 15:36:14
○ 2026-07-20 11:22:54

○A58.192.29.592015-07-23 → 2015-07-23 · 3 obs

● 2015-07-23 06:33:04
○ 2015-11-22 20:26:20
○ 2026-07-20 11:22:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net...	-
bystudent.com	dns9.hichina.com, dns10.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.42

NS records: dns9.hichina.com, dns10.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bystudent.com (unsigned zone)

⏱️ Timing

Total: 4754ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns10.hichina.com, dns9.hichina.com`
MX	2	`mxw.mxhichina.com (pri: 10), mxn.mxhichina.com (pri: 5)`
TXT	1	`v=spf1 include:spf.mxhichina.com -all`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)

Analysis

Name Servers

DNS delegation for bystudent.com points to two name servers: dns10.hichina.com and dns9.hichina.com.

bystudent.com uses the same name servers as several other domains — among them jsfs.cn, chrisfall.com, creazionilifestyle.com and two more.

bystudent.com has a partial name server overlap with other domains — among them wishown.com and dgrbcj.com.

Hostnames that resolve to 9 IP addresses:

dns10.hichina.com has IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, plus 6 other.

dns9.hichina.com has IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, plus 6 other.

Mail Servers

Mail for bystudent.com is handled by two mail servers — mxn.mxhichina.com and mxw.mxhichina.com.

bystudent.com uses an identical mail server configuration to several other domains — among them colornow.net, scservo.com, p3china.com and two more.

bystudent.com has at least partial mail server overlap with other domains such as book521.com, skdlabs.com, revtime-med.com and two more.

These mail servers tend to be used in combination with the mail servers mxbiz1.qq.com and mxbiz2.qq.com.

Hostnames that resolve to two IP addresses:

mxn.mxhichina.com has two IP addresses: 47.246.136.231 and 47.246.137.47.

Hosts with just one IP address:

mxw.mxhichina.com directs to 47.246.99.195.

bystudent.com - robtex.com

bystudent.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Name Servers

Mail Servers

`bystudent.com`

`com`