`bigoffice.cool`

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,}
SOA	`dns9.hichina.com`hostmaster@hichina.com 2026-02-25 #21

`cool`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.cool` ⭐
	NS	`v0n1.nic.cool`
	NS	`v0n2.nic.cool`
	NS	`v0n3.nic.cool`
	NS	`v2n0.nic.cool`
	NS	`v2n1.nic.cool`
	SOA	`v0n0.nic.cool`hostmaster@donuts.email serial=1775975183

Same first word

bigoffice.it

bigoffice.cool

bigoffice.co.kr

bigoffice.de

Similar names

gbioffice.com

DNS History

2 records (2 active, 0 former)

●NSdns10.hichina.com2026-03-20 → 2026-04-12 · 2 obs

● 2026-03-20 22:16:20
● 2026-04-12 06:53:10

●NSdns9.hichina.com2026-03-20 → 2026-04-12 · 2 obs

● 2026-03-20 22:16:20
● 2026-04-12 06:53:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cool	v0n1.nic.cool, v2n0.nic.cool, v0n3.nic.cool, v0n0.nic.cool...	12 records
bigoffice.cool	dns10.hichina.com, dns9.hichina.com	-

✅ Authoritative Response

Server:120.76.107.41

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bigoffice.cool (unsigned zone)

⏱️ Timing

Total: 4174ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns10.hichina.com, dns9.hichina.com`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v2n1.nic.cool, v2n0.nic.cool, v0n3.nic.cool...)

Analysis

Name Servers

Two name servers dns10.hichina.com and dns9.hichina.com handle the delegation for bigoffice.cool.

bigoffice.cool shares the same name server setup as other domains, for instance djfw.net, wangyukun.com, norman99.cn, pixiu.ltd and nextidea.me.

bigoffice.cool at least partially shares name servers with other domains, for instance shchuangshi.com.cn, sdgpkj.com, lingx.net, bochtec.com and pinsumchina.com.

These name servers are commonly used with the following: expirens3.hichina.com, expirens4.hichina.com, dns21.hichina.com and dns22.hichina.com.

Host names with nine IP numbers:

dns10.hichina.com points to: 2408:4009:501::18, 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.

dns9.hichina.com points to: 2408:4009:501::17, 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.

bigoffice.cool - robtex.com

bigoffice.cool

cool