`tudai.com`

DNSSEC	⚠️ Not signed
NS	`dns3.hichina.com` ⭐
		A	2408:4009:501::11^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-43.defastlink.net`
		A	39.96.153.63^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-63.defastlink.net`
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-203.defastlink.net`
		A	47.118.199.213^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-213.defastlink.net`
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-43.defastlink.net`
		A	120.76.107.63^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-63.defastlink.net`
		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,}
			PTR	`ip-139-224-142-113.defastlink.net`
		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,}
			PTR	`ip-139-224-142-123.defastlink.net`
NS	`dns4.hichina.com`
		A	2408:4009:501::12^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.44^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-44.defastlink.net`
		A	39.96.153.54^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-54.defastlink.net`
		A	47.118.199.204^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-204.defastlink.net`
		A	47.118.199.214^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-214.defastlink.net`
		A	120.76.107.44^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-44.defastlink.net`
		A	120.76.107.54^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-54.defastlink.net`
		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,}
			PTR	`ip-139-224-142-114.defastlink.net`
		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,}
			PTR	`ip-139-224-142-124.defastlink.net`
SOA	`dns3.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=1771291435

Previously NS for

tudai.com

Same first word

tudai.cc

tudai.com

Similar names

audit.kz

daitu.org

audit.lviv.ua

audit.lt

dauti.com.mk

audit.gov.mv

audit.cl

audit.directory

audit.gov.ly

atidu.com

audit.tas.gov.au

audit.gov.tw

itdau.com

audit.gov.cn

audit.legal

taidu.cc

iuadt.cn

tuiad.net

duati.com

utaid.com

audit.by

audit.gov.cy

audit.company

dauit.com

aitud.com

dauti.com

audit.vn

ituda.com

idatu.com

audit.fi

audit.express

audit.pl

tuaid.com

duait.ru

audit.gov.bz

audit.life

audit.guide

audit.kiev.ua

daitu.net

audit.amsterdam

audit.org.ir

aidtu.com

dauti.org

audit.group

audit.agency

audit.cz

audit.tw

audit.wales

audit.sa.gov.au

audit.gent

datui.net

audit.gov.sh

audit.com

audit.one

audit.ch

audit.go.th

dutai.cn

daitu.jp

audit.ro

audit.es

tduai.cn

audit.com.ua

tidua.com

audit.no

audit.bg

daitu.com.cn

audit.mx

taidu.com

aditu.de

audit.com.br

audit.org

audit.se

aduit.com

tuiad.com

audit.monster

audit.az

daitu.co.jp

audit.scot

itdau.de

audit.report

audit.eu

audit.nu

diuta.com

audit.com.tr

audit.vote

audit.ru

audit.me

daitu.edu.vn

audit.be

uidat.de

audit.org.cn

tuida.com

duita.cn

idaut.com

audit.gov.ua

audit.ge

audit.gov.bn

audit.capital

audit.gov.dm

aduti.com

tudia.es

audit.s3.amazonaws.com

audit.ca

audit.in

aditu.cn

audit.gr

audit.gov.to

audit.ltd

audit.pe

daitu.com

audit.co.th

audit.mn

audit.googleapis.com

audit.is

uadit.com

audit.nl

audit.kg

aditu.fr

itaud.world

tudia.myshopify.com

audit.ba

aditu.org

audit.gov.my

itaud.de

audit.lv

audit.digital

aidut.com

audit.de

audit.hu

DNS History

10 records (2 active, 8 former)

●NSdns3.hichina.com2026-03-04 → 2026-03-21 · 3 obs

○ 2016-10-01 10:03:38
● 2026-03-04 05:53:12
● 2026-03-21 06:38:32

●NSdns4.hichina.com2026-03-04 → 2026-03-21 · 3 obs

○ 2016-10-01 10:03:38
● 2026-03-04 05:53:12
● 2026-03-21 06:38:32

○NSns1.alidns.com2016-10-01 → 2016-10-01 · 4 obs

○ 2016-04-27 13:40:42
● 2016-10-01 10:03:38
○ 2026-03-04 05:53:12
○ 2026-03-21 06:38:32

○NSns2.alidns.com2016-10-01 → 2016-10-01 · 4 obs

○ 2016-04-27 13:40:42
● 2016-10-01 10:03:38
○ 2026-03-04 05:53:12
○ 2026-03-21 06:38:32

○NStudai.com2015-08-09 → 2016-04-27 · 4 obs

● 2015-08-09 14:01:34
● 2016-04-27 13:40:42
○ 2016-10-01 10:03:38
○ 2026-03-21 06:38:32

○MXmxbiz1.qq.com2015-08-09 → 2016-10-01 · 4 obs

● 2015-08-09 14:01:34
● 2016-10-01 10:03:38
○ 2026-03-04 05:53:12
○ 2026-03-21 06:38:32

○MXmxbiz2.qq.com2015-08-09 → 2016-10-01 · 4 obs

● 2015-08-09 14:01:34
● 2016-10-01 10:03:38
○ 2026-03-04 05:53:12
○ 2026-03-21 06:38:32

○A118.194.216.112015-08-09 → 2016-02-09 · 6 obs

● 2015-08-09 14:01:34
● 2015-10-12 02:26:44
○ 2015-12-21 13:51:44
● 2016-02-09 22:22:00
○ 2016-04-27 13:40:42
○ 2026-03-21 06:38:32

○A123.150.200.1702015-08-09 → 2016-04-27 · 7 obs

● 2015-08-09 14:01:34
○ 2015-10-12 02:26:44
● 2015-12-21 13:51:44
○ 2016-02-09 22:22:00
● 2016-04-27 13:40:42
○ 2016-10-01 10:03:38
○ 2026-03-21 06:38:32

○A60.205.59.1022016-10-01 → 2016-10-01 · 4 obs

○ 2016-04-27 13:40:42
● 2016-10-01 10:03:38
○ 2026-03-04 05:53:12
○ 2026-03-21 06:38:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
tudai.com	dns3.hichina.com, dns4.hichina.com	18 records

✅ Authoritative Response

Server: 2408:4009:501::11

NS records: dns3.hichina.com, dns4.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tudai.com (unsigned zone)

⏱️ Timing

Total: 2646ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns3.hichina.com, dns4.hichina.com`
SOA	1	`dns3.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns3.hichina.com, dns3.hichina.com, dns3.hichina.com...)

Analysis

Name Servers

tudai.com is delegated to two name servers: dns3.hichina.com and dns4.hichina.com.

tudai.com uses the same name server setup as other domains such as tbdsj.com, sunsmileoutdoor.com, hamo.com.cn, retdata.com and leadart.cn.

tudai.com shares name servers with other domains at least partially, for instance recadata.com.cn, celina.cn and sonidoefectos.com.

These name servers are commonly used with the name servers ns1.alidns.com and ns2.alidns.com.

Host names with nine IP numbers:

dns3.hichina.com points to: 2408:4009:501::11, 39.96.153.43, 39.96.153.63, 47.118.199.203, 47.118.199.213, 120.76.107.43, 120.76.107.63, 139.224.142.113 and 139.224.142.123.

dns4.hichina.com points to: 2408:4009:501::12, 39.96.153.44, 39.96.153.54, 47.118.199.204, 47.118.199.214, 120.76.107.44, 120.76.107.54, 139.224.142.114 and 139.224.142.124.

tudai.com - robtex.com

tudai.com

com

Previously NS for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Name Servers

`tudai.com`

`com`