`uclass.net`

DNSSEC	⚠️ Not signed
NS	`dns13.hichina.com` ⭐
		A	2408:4009:501::21^{🇨🇳 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	`dns14.hichina.com`
		A	2408:4009:501::22^{🇨🇳 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	`mx2.zoho.jp` ⭐
		A	193.118.161.144^{🇯🇵 ZJC-AS-AP193.118.161.0/24 COLT ASIA Telecom}
			PTR	`mx2.zoho.jp`
			PTR	`mx3.zoho.jp`
			PTR	`mx.zoho.jp`
MX	`mx.zoho.jp`⁽²⁰⁾
		A	103.163.152.144^{🇯🇵 ZJC-AS-AP103.163.152.0/24 Zoho Japan Corporation Minato-Mirai-Center Bldg. 13F, 3-6-1 Nishi-ku,}
			PTR	`mx2.zoho.jp`
			PTR	`mx3.zoho.jp`
			PTR	`mx.zoho.jp`
		A	193.118.161.144^{🇯🇵 ZJC-AS-AP193.118.161.0/24 COLT ASIA Telecom}
			PTR	`mx2.zoho.jp`
			PTR	`mx3.zoho.jp`
			PTR	`mx.zoho.jp`
TXT	`v=spf1 include:zohomail.jp ~all`
TXT	`zoho-verification=zb96101418.zmverify.zoho.jp`
SOA	`dns13.hichina.com`hostmaster@hichina.com 2026-01-09 #13

`net`

	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=1776047987

Same first word

uclass.com.cn

uclass.org

uclass.io

uclass.com.tw

uclass.net

uclass.ru

uclass.com

uclass.com.br

Similar names

clasus.nl

clauss.com

saulsc.net

slucas.de

sclusa.net

clauss.biz

lcsusa.com

clauss.gr

sclaus.com

lucssa.com

csuals.com

lucass.com.br

suscla.com

cassul.com.br

clsaus.com

cslusa.net

salcus.it

clauss.es

sacsul.com

slucas.fr

clauss.us

slucas.com

sclaus.net

usclas.com

lussac.info

clsusa.com

clasus.ru

classu.co.kr

clauss.de

clauss.email

scalus.com

clauss.eu

clauss.name

lucass.com

ucssal.org

sclusa.com

slucas.ca

clauss.org

clauss.zone

clasus.com

slcusa.com

cassul.com

cassul.cz

clauss.fr

clauss.at

clauss.info

uclsas.com

clauss.it

lucass.de

clauss.online

caluss.com

lussac.es

lussac.co

cslusa.com

lussac.net

clauss.co.uk

DNS History

8 records (4 active, 4 former)

○NSdns10.hichina.com2016-09-20 → 2018-06-22 · 5 obs

○ 2016-03-30 22:38:54
● 2016-09-20 18:20:18
● 2018-06-22 15:18:54
○ 2026-03-26 21:52:46
○ 2026-04-13 02:41:18

●NSdns13.hichina.com2026-03-26 → 2026-04-13 · 3 obs

○ 2018-06-22 15:18:54
● 2026-03-26 21:52:46
● 2026-04-13 02:41:18

●NSdns14.hichina.com2026-03-26 → 2026-04-13 · 3 obs

○ 2018-06-22 15:18:54
● 2026-03-26 21:52:46
● 2026-04-13 02:41:18

○NSdns31.hichina.com2015-09-03 → 2016-01-01 · 4 obs

● 2015-09-03 20:16:26
● 2016-01-01 12:29:52
○ 2016-03-30 22:38:54
○ 2026-04-13 02:41:18

○NSdns32.hichina.com2015-09-03 → 2016-01-01 · 4 obs

● 2015-09-03 20:16:26
● 2016-01-01 12:29:52
○ 2016-03-30 22:38:54
○ 2026-04-13 02:41:18

○NSdns9.hichina.com2016-09-20 → 2018-06-22 · 5 obs

○ 2016-03-30 22:38:54
● 2016-09-20 18:20:18
● 2018-06-22 15:18:54
○ 2026-03-26 21:52:46
○ 2026-04-13 02:41:18

●MXmx.zoho.jp2026-03-26 → 2026-04-13 · 2 obs

● 2026-03-26 21:52:46
● 2026-04-13 02:41:18

●MXmx2.zoho.jp2026-03-26 → 2026-04-13 · 2 obs

● 2026-03-26 21:52:46
● 2026-04-13 02:41:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	l.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...	-
uclass.net	dns13.hichina.com, dns14.hichina.com	-

✅ Authoritative Response

Server:39.96.153.41

NS records: dns13.hichina.com, dns14.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for uclass.net (unsigned zone)

⏱️ Timing

Total: 1299ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns14.hichina.com, dns13.hichina.com`
MX	2	`mx2.zoho.jp (pri: 20), mx.zoho.jp (pri: 10)`
TXT	2	`v=spf1 include:zohomail.jp ~all, zoho-verification=zb96101418.zmverify.zo`
SOA	1	`dns13.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

Two name servers dns13.hichina.com and dns14.hichina.com handle delegation for uclass.net.

uclass.net uses the same name server setup as other domains, for example goong.cn, gpsw.com, hzsy.cn, tvskd.com and szfengyuan.cn.

uclass.net partially shares name servers with other domains; examples include sdestudy.cn, enavicom.net, mingxingfang.com, polyopulence.com and 772fk.cn.

These name servers are commonly used with expirens3.hichina.com, expirens4.hichina.com and ns1.alidns.com.

Host names with nine IP numbers:

dns13.hichina.com points to: 2408:4009:501::21, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.

dns14.hichina.com points to: 2408:4009:501::22, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.

Mail Servers

uclass.net is handled by two mail servers: mx2.zoho.jp and mx.zoho.jp.

uclass.net uses the same mail server setup as other domains: linkcrew.net, nakaso.com, zeptomail.jp and mx-x.com.

uclass.net shares some mail servers with other domains, at least partially, such as spiketelecom.com, eveki.net, imaogift.jp, serendute.com and homequartersinc.com.

These mail servers are often used with the mail servers mx3.zoho.jp.

Host names with two IPs:

mx.zoho.jp points to: 103.163.152.144 and 193.118.161.144.

Host names with a single IP:

mx2.zoho.jp points to: 193.118.161.144.

Names resolving to 193.118.161.144: mx.zoho.jp and mx2.zoho.jp.

uclass.net - robtex.com

uclass.net

net