`co-vb.cn`

DNSSEC	⚠️ Not signed
NS	`dns21.hichina.com` ⭐
		A	2408:4009:501::29^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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	139.224.142.110^{🇨🇳 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	`dns22.hichina.com`
		A	2408:4009:501::30^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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	139.224.142.108^{🇨🇳 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	`dns21.hichina.com`hostmaster@hichina.com 2026-01-31 #14

`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=2034782586

⚠️ On DNS blocklist: tif

Same first word

co-vb.cn

Similar names

co-bv.cn

vb-oc.co.uk

b-vco.com

vob-c.de

v-cob.net

DNS History

2 records (2 active, 0 former)

●NSdns21.hichina.com2026-05-04 → 2026-05-12 · 2 obs

● 2026-05-04 11:49:42
● 2026-05-12 11:04:00

●NSdns22.hichina.com2026-05-04 → 2026-05-12 · 2 obs

● 2026-05-04 11:49:42
● 2026-05-12 11:04:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
co-vb.cn	dns21.hichina.com, dns22.hichina.com	-

✅ Authoritative Response

Server:47.118.199.200

NS records: dns21.hichina.com, dns22.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for co-vb.cn (unsigned zone)

⏱️ Timing

Total: 2134ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns22.hichina.com, dns21.hichina.com`
SOA	1	`dns21.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

Two name servers dns21.hichina.com and dns22.hichina.com handle delegation for co-vb.cn.

co-vb.cn uses the same name server setup as other domains, for example biyepaper.com, lzyd-szzc.com, tintslab.com, jbtr.cn and jingpinban.net.

co-vb.cn partially shares name servers with other domains; examples include ctexm.cn, ycdjxt.com, opas.cn, horipa.top and alddla.com.

These name servers are often used with the name servers expirens3.hichina.com and expirens4.hichina.com.

Host names with nine IP numbers:

dns21.hichina.com points to: 2408:4009:501::29, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110.

dns22.hichina.com points to: 2408:4009:501::30, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.

co-vb.cn - robtex.com

co-vb.cn

cn