cob-tech.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`cob-tech.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}
		A	39.96.153.63^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.213^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.63^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		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,}
		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,}
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}
		A	39.96.153.54^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.204^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.214^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.44^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.54^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		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,}
		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,}
MX	`mx1.qiye.aliyun.com` ⭐
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
MX	`mx2.qiye.aliyun.com`⁽¹⁰⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
MX	`mx3.qiye.aliyun.com`⁽¹⁵⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
TXT	`v=spf1 include:spf.qiye.aliyun.com -all`
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=1786858674

Same first word

cob-tech.com

Similar names

btc-echo.de

cbo-tech.com

boc-tech.com

boc-tech.com.cn

DNS History

5 records (5 active, 0 former)

●NSdns3.hichina.com2026-03-11 → 2026-08-16 · 2 obs

● 2026-03-11 01:10:08
● 2026-08-16 05:52:16

●NSdns4.hichina.com2026-03-11 → 2026-08-16 · 2 obs

● 2026-03-11 01:10:08
● 2026-08-16 05:52:16

●MXmx1.qiye.aliyun.com2026-03-11 → 2026-08-16 · 2 obs

● 2026-03-11 01:10:08
● 2026-08-16 05:52:16

●MXmx2.qiye.aliyun.com2026-03-11 → 2026-08-16 · 2 obs

● 2026-03-11 01:10:08
● 2026-08-16 05:52:16

●MXmx3.qiye.aliyun.com2026-03-11 → 2026-08-16 · 2 obs

● 2026-03-11 01:10:08
● 2026-08-16 05:52:16

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:120.76.107.44

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cob-tech.com (unsigned zone)

⏱️ Timing

Total: 555ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns4.hichina.com, dns3.hichina.com`
MX	3	`mx1.qiye.aliyun.com (pri: 5), mx3.qiye.aliyun.com (pri: 15)...`
TXT	1	`v=spf1 include:spf.qiye.aliyun.com -all`
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

The NS records for cob-tech.com delegate to dns3.hichina.com and dns4.hichina.com.

cob-tech.com shares its name server setup with other domains, including 51amz.com, feiliu-tech.com.cn, spr-rem.com and two others.

The name servers of cob-tech.com overlap at least partially with those of other domains — among them jcex.com, cdseo.org, ynup.cn and two more.

These name servers commonly appear alongside the name servers expirens3.hichina.com and expirens4.hichina.com.

Host names with 9 IP numbers:

dns3.hichina.com maps to 39.96.153.43, 39.96.153.63, 47.118.199.203 and 6 additional IP addresses.

dns4.hichina.com maps to 39.96.153.44, 39.96.153.54, 47.118.199.204 and 6 additional IP addresses.

Mail Servers

Mail for cob-tech.com is routed through three mail servers — mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

cob-tech.com shares mail servers — at least in part — with other domains, including dp-law.cn, wolkercloud.com, bloopower.com and two others.

The mail servers mxn.mxhichina.com and mxw.mxhichina.com are commonly paired with these mail servers.

Host names with two IP numbers:

The A records for mx3.qiye.aliyun.com return 47.246.136.231 and 47.246.137.47.

Host names pointing to a single IP address:

mx1.qiye.aliyun.com resolves to the IP address 47.246.137.47.

mx2.qiye.aliyun.com resolves to the IP address 47.246.136.231.

mx3.qiye.aliyun.com and mx2.qiye.aliyun.com each have 47.246.136.231 IP addresses.

mx3.qiye.aliyun.com and mx1.qiye.aliyun.com each have 47.246.137.47 IP addresses.