`coibid.com`

DNSSEC	⚠️ Not signed
A	103.85.212.132^{🇭🇰 LIVECOMLIMTED-AS-AP103.85.212.0/24 Livecom Limted Unit 03, 12/F Sino Favour Center 1 On Yip Street, Chai Wan,HK}
NS	`dns1.zdnscloud.info` ⭐
		A	2408:8719:2500:0:b::1^{🇨🇳 CHINA169-Backbone2408:8719::/32 China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street}
		A	14.29.124.15^{🇨🇳 CHINANET-BACKBONE14.16.0.0/12 China Telecom Global Limited}
		A	14.116.160.20^{🇨🇳 CHINANET-BACKBONE14.112.0.0/12 China Telecom Network}
		A	14.116.247.213^{🇨🇳 CHINANET-BACKBONE14.112.0.0/12 China Telecom Network}
NS	`cns1.zdnscloud.net`
		A	2408:8719:2500:0:a::1^{🇨🇳 CHINA169-Backbone2408:8719::/32 China Unicom B811&A1218, China Unicom No.21, Jin-Rong Street}
		A	42.62.2.24^{🇨🇳 CHINA-142.62.0.0/21 China Telecom Beijing Co. Ltd.}
		A	42.62.2.29^{🇨🇳 CHINA-142.62.0.0/21 China Telecom Beijing Co. Ltd.}
NS	`ins1.zdnscloud.com`
		A	2401:8d00:f::1^{🇨🇳 ZDNS2401:8d00:f::/48 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.}
		A	27.221.63.3^{🇨🇳 CHINA169-Backbone27.192.0.0/11 China Unicom Shandong Province Network}
		A	119.167.244.44^{🇨🇳 CHINA169-Backbone119.164.0.0/14 CNC Group CHINA169 Shandong Province Network}
NS	`vns1.zdnscloud.biz`
		A	2401:8d00:9::1^{🇨🇳 ZDNS2401:8d00:9::/48 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.}
			PTR	`vns1.zdnscloud.biz`
		A	203.99.22.3^{🇨🇳 ZDNS203.99.22.0/24 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.}
			PTR	`vns1.zdnscloud.biz`
		A	203.99.23.3^{🇨🇳 ZDNS203.99.23.0/24 Internet Domain Name System Beijing Engineering Resrarch Center Ltd.}
			PTR	`vns1.zdnscloud.biz`
MX	`mta-ent.21cn.com` ⭐
		A	183.56.203.132^{🇨🇳 CHINANET-Guangdong-GuangZhouNanFangJiDiWang-IDC183.56.192.0/20 CloudVsp.Inc-HYC-double - GZNFJDW Network unicast}
		A	183.56.205.179^{🇨🇳 CHINANET-Guangdong-GuangZhouNanFangJiDiWang-IDC183.56.192.0/20 CloudVsp.Inc-HYC-double - GZNFJDW Network unicast}
MX	`mailcdn.21cn.com`⁽¹⁰⁾
		A	47.89.13.55^{🇭🇰 Alibaba-Cloud47.89.0.0/19 Alibaba Cloud}
			PTR	`hwmail.21cn.com`
		A	47.244.57.14^{🇭🇰 Alibaba-Cloud47.244.0.0/17 Proxy-registered route object}
			PTR	`hwmail.21cn.com`
		A	47.254.32.24^{🇺🇸 Alibaba-Cloud47.254.0.0/18 Proxy-registered route object}
			PTR	`hwmail.21cn.com`
		A	47.254.74.62^{🇺🇸 Alibaba-Cloud47.254.64.0/18 Proxy-registered route object}
			PTR	`hwmail.21cn.com`
TXT	`v=spf1 include:corp.21cn.com. -all`
SOA	`dns1.zdnscloud.info`mail@knet.cn serial=19

`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

Same first word

coibid.com

Similar names

bidico.vn

dicobi.com

biodic.go.jp

biodic.com

bicido.com

cidbio.com

bioidc.com

biidoc.com

bicodi.com

bidico.com

dibico.com

bdiioc.net

dobici.com

biocid.com

DNS History

15 records (7 active, 8 former)

○NSben.ns.cloudflare.com2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 10:32:40
○ 2026-03-14 14:29:44
○ 2026-03-24 04:24:26

○NSbeth.ns.cloudflare.com2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 10:32:40
○ 2026-03-14 14:29:44
○ 2026-03-24 04:24:26

●NScns1.zdnscloud.net2026-03-14 → 2026-03-24 · 3 obs

○ 2018-05-10 10:32:40
● 2026-03-14 14:29:44
● 2026-03-24 04:24:26

●NSdns1.zdnscloud.info2026-03-14 → 2026-03-24 · 3 obs

○ 2018-05-10 10:32:40
● 2026-03-14 14:29:44
● 2026-03-24 04:24:26

●NSins1.zdnscloud.com2026-03-14 → 2026-03-24 · 3 obs

○ 2018-05-10 10:32:40
● 2026-03-14 14:29:44
● 2026-03-24 04:24:26

●NSvns1.zdnscloud.biz2026-03-14 → 2026-03-24 · 3 obs

○ 2018-05-10 10:32:40
● 2026-03-14 14:29:44
● 2026-03-24 04:24:26

●MXmailcdn.21cn.com2026-03-14 → 2026-03-24 · 3 obs

○ 2018-05-10 10:32:40
● 2026-03-14 14:29:44
● 2026-03-24 04:24:26

●MXmta-ent.21cn.com2026-03-14 → 2026-03-24 · 3 obs

○ 2018-05-10 10:32:40
● 2026-03-14 14:29:44
● 2026-03-24 04:24:26

○MXmx.zoho.com2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 10:32:40
○ 2026-03-14 14:29:44
○ 2026-03-24 04:24:26

○MXmx2.zoho.com2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 10:32:40
○ 2026-03-14 14:29:44
○ 2026-03-24 04:24:26

●A103.85.212.1322026-03-14 → 2026-03-24 · 3 obs

○ 2018-05-10 10:32:40
● 2026-03-14 14:29:44
● 2026-03-24 04:24:26

○A104.18.38.2232018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 10:32:40
○ 2026-03-14 14:29:44
○ 2026-03-24 04:24:26

○A104.18.39.2232018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 10:32:40
○ 2026-03-14 14:29:44
○ 2026-03-24 04:24:26

○A2400:cb00:2048:1::6812:26df2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 10:32:40
○ 2026-03-14 14:29:44
○ 2026-03-24 04:24:26

○A2400:cb00:2048:1::6812:27df2018-05-10 → 2018-05-10 · 3 obs

● 2018-05-10 10:32:40
○ 2026-03-14 14:29:44
○ 2026-03-24 04:24:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, g.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net...	-
coibid.com	cns1.zdnscloud.net, ins1.zdnscloud.com, dns1.zdnscloud.info, vns1.zdnscloud.biz	3 records

✅ Authoritative Response

Server:42.62.2.24

NS records: cns1.zdnscloud.net, ins1.zdnscloud.com, dns1.zdnscloud.info, vns1.zdnscloud.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coibid.com (unsigned zone)

⏱️ Timing

Total: 4431ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.85.212.132`
NS	4	`vns1.zdnscloud.biz, ins1.zdnscloud.com...`
MX	2	`mta-ent.21cn.com (pri: 5), mailcdn.21cn.com (pri: 10)`
TXT	1	`v=spf1 include:corp.21cn.com. -all`
SOA	1	`dns1.zdnscloud.info mail.knet.cn`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ins1.zdnscloud.com, ins1.zdnscloud.com, ins1.zdnscloud.com)

Analysis

IP Addresses

coibid.com points to a single IP address: 103.85.212.132.

Name Servers

coibid.com is delegated to four name servers: vns1.zdnscloud.biz, ins1.zdnscloud.com, dns1.zdnscloud.info and cns1.zdnscloud.net.

At least part of the name servers for coibid.com are shared with other domains, for instance nic.wang, knet.cn, rong-edge.com, yanhe.gov.cn and xinpu.gov.cn.

These name servers are commonly used alongside the name servers dns1.czbank.com.

Host names with four IP numbers:

dns1.zdnscloud.info points to 2408:8719:2500:0:b::1, 14.29.124.15, 14.116.160.20 and 14.116.247.213.

Host names with three IP numbers:

vns1.zdnscloud.biz points to 2401:8d00:9::1, 203.99.22.3 and 203.99.23.3; ins1.zdnscloud.com points to 2401:8d00:f::1, 27.221.63.3 and 119.167.244.44; cns1.zdnscloud.net points to 2408:8719:2500:0:a::1, 42.62.2.24 and 42.62.2.29.

Mail Servers

coibid.com is handled by two mail servers: mailcdn.21cn.com and mta-ent.21cn.com.

coibid.com uses the same mail server setup as other domains, for instance cnhexin.net, karming.com, zhuhai.gd.cn, sunrisemoulding.com and joinaction.cn.

coibid.com shares at least some mail servers with other domains, for example graser.com.cn, public.nn.gx.cn, sh.21cn.com, cmail.21cn.com and max3-207.guangzhou.gd.cn.

Four IPs for host names: mailcdn.21cn.com points to 47.89.13.55, 47.244.57.14, 47.254.32.24 and 47.254.74.62.

Two IPs for host names: mta-ent.21cn.com points to 183.56.203.132 and 183.56.205.179.

coibid.com - robtex.com

coibid.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`coibid.com`

`com`