`bioit.cn`

DNSSEC	⚠️ Not signed
NS	`dns13.hichina.com` ⚠️ Not in zone NS records
		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` ⚠️ Not in zone NS records
		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,}

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2035124047

Subdomains

mail.bioit.cn

Same first word

bioit.ai

bioit.dk

bioit.com.br

bioit.net

bioit.solutions

bioit.nl

bioit.se

bioit.cn

bioit.de

bioit.com

bioit.org

Similar names

itbio.ru

biito.co.jp

otibi.com

iobit.com.tw

tobii.gg

tobii.in

bioti.me

tibio.pl

tobii.pl

tobii.org

ibito.com

tobii.careers

iobit.io

iobit.co.kr

tobii.be

itibo.cz

tobii.jp

ibiot.com

tobii.de

bioti.fr

itobi.de

tobii.cz

tobii.co.jp

iobit.com

iobit.it

toibi.com

tobii.info

ibito.de

tibio.de

tobii.pt

tobii.fi

iobit.org

tobii.com.pt

itobi.com

bitio.pl

boiti.com

tobii.is

tiobi.com

iibot.com

bitio.com

bitio.se

iboti.com

iotbi.com

itobi.net

tobii.co.za

tobii.us

iotbi.cn

tobii.dk

itbio.com

itibo.com

itobi.sp.gov.br

bitio.us

iobit.net

bitio.cn

tobii.eu

iobit.jp

tiibo.com

tobii.cl

tobii.nl

iibot.cn

iobit.de

tobii.fr

bitio.io

iobit.nl

botii.cn

obiit.org

iobit.co

tobii.se

tobii.ru

tobii.gr

bioti.pl

itbio.de

tobii.com.mx

botii.com

iboti.info

tobii.training

tobii.at

tobii.academy

bioti.co

tobii.com

tobii.cn

biito.com

iotib.net

bitio.vu

tibio.fi

tobii.ch

tobii.github.io

tobii.co

oibit.com

tobii.io

bitio.cc

tobii.no

tobii.technology

toibi.org

iobit.info

tobii.me

tibio.ch

tobii.co.uk

tobii.it

tobii.net

tobii.co.in

boiti.it

iobit.ru

tobii.pro

bitio.net

tobii.biz

DNS History

12 records (2 active, 10 former)

●NSdns13.hichina.com2026-06-26 → 2026-08-02 · 3 obs

○ 2018-12-07 03:18:06
● 2026-06-26 17:08:58
● 2026-08-02 12:13:44

●NSdns14.hichina.com2026-06-26 → 2026-08-02 · 3 obs

○ 2018-12-07 03:18:06
● 2026-06-26 17:08:58
● 2026-08-02 12:13:44

○NSns1.ezdnscenter.com2015-07-15 → 2017-02-01 · 4 obs

● 2015-07-15 18:26:00
● 2017-02-01 14:09:10
○ 2018-12-07 03:18:06
○ 2026-08-02 12:13:44

○NSns2.ezdnscenter.com2015-07-15 → 2016-06-19 · 4 obs

● 2015-07-15 18:26:00
● 2016-06-19 21:12:14
○ 2018-12-07 03:18:06
○ 2026-08-02 12:13:44

○NSns3.ezdnscenter.com2015-07-15 → 2016-06-19 · 4 obs

● 2015-07-15 18:26:00
● 2016-06-19 21:12:14
○ 2018-12-07 03:18:06
○ 2026-08-02 12:13:44

○NSns4.ezdnscenter.com2015-07-15 → 2016-06-19 · 4 obs

● 2015-07-15 18:26:00
● 2016-06-19 21:12:14
○ 2018-12-07 03:18:06
○ 2026-08-02 12:13:44

○NSns5.ezdnscenter.com2015-07-15 → 2016-06-19 · 4 obs

● 2015-07-15 18:26:00
● 2016-06-19 21:12:14
○ 2018-12-07 03:18:06
○ 2026-08-02 12:13:44

○NSns6.ezdnscenter.com2015-07-15 → 2016-06-19 · 4 obs

● 2015-07-15 18:26:00
● 2016-06-19 21:12:14
○ 2018-12-07 03:18:06
○ 2026-08-02 12:13:44

○MXmail.bioit.cn2015-07-15 → 2016-06-19 · 4 obs

● 2015-07-15 18:26:00
● 2016-06-19 21:12:14
○ 2018-12-07 03:18:06
○ 2026-08-02 12:13:44

○A61.155.203.32015-07-15 → 2016-06-19 · 4 obs

● 2015-07-15 18:26:00
● 2016-06-19 21:12:14
○ 2018-12-07 03:18:06
○ 2026-08-02 12:13:44

○CNAMEagent31.juming.com2018-12-07 → 2018-12-07 · 3 obs

● 2018-12-07 03:18:06
○ 2026-06-26 17:08:58
○ 2026-08-02 12:13:44

○CNAMEoverdue.aliyun.com2026-07-16 → 2026-07-16 · 4 obs

○ 2026-06-26 17:08:58
● 2026-07-16 23:57:00
○ 2026-07-25 21:08:18
○ 2026-08-02 12:13:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
bioit.cn	dns13.hichina.com, dns14.hichina.com	-

✅ Authoritative Response

Server:39.96.153.42

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bioit.cn (unsigned zone)

⏱️ Timing

Total: 3439ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns13.hichina.com, dns14.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns13.hichina.com hostmaster.hichina.com`

Analysis

Hierarchy

bioit.cn serves as the parent of mail.bioit.cn.

Name Servers

bioit.cn is delegated to two name servers: dns13.hichina.com and dns14.hichina.com.

bioit.cn shares its NS records with other domains, for example wefk.com, poliletter.com, bjlex.com and two others.

bioit.cn has at least partial name server overlap with other domains, such as ypvv.com, keji4000.com, cz-quanxin.com and two others.

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

DNS names with 9 IP addresses:

dns13.hichina.com resolves to 39.96.153.42, 39.96.153.52, 47.118.199.202 and 6 other IP addresses.

dns14.hichina.com resolves to 39.96.153.41, 39.96.153.51, 47.118.199.201 and 6 other IP addresses.

bioit.cn - robtex.com

bioit.cn

cn

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

Name Servers

`bioit.cn`

`cn`