cosbb.com - dns.ninja

`cosbb.com`

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,}
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}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
MX	`mx3.qiye.aliyun.com`⁽¹⁵⁾
		A	47.246.136.231^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
			PTR	`cz-clare.com`
			PTR	`reachsmartdwell.com`
			PTR	`wevolt.tech`
		A	47.246.137.47^{🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud}
TXT	`v=spf1 include:spf.qiye.aliyun.com -all`
SOA	`dns21.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=1786769634

WOT: SAFE (70/100)

Previously MX for

cosbb.com

Same first word

cosbb.com

Similar names

osbbc.ro

cobbs.de

scobb.com

bsobc.net

bbcos.cn

ocbbs.com

bsbco.com

osbbc.ca

scbob.com

sbbco.com

scbbo.net

scbbo.com

sbbco.net

bcbso.com

bbcos.it

bbsco.com

cobbs.info

scobb.net

cobbs.org

cobbs.ca

bbcos.de

bbsoc.org

csbob.com

bbcos.ru

cobbs.net

cobbs.net.au

cobbs.co.uk

bobsc.pl

sbcbo.org

osbbc.com

cobbs.us

cobbs.co.nz

csbbo.de

sbcob.org

cobbs.com

sbcbo.se

bscob.de

osbcb.com

bbcos.pl

DNS History

13 records (5 active, 8 former)

●NSdns21.hichina.com2026-02-21 → 2026-08-15 · 3 obs

○ 2017-08-25 16:55:46
● 2026-02-21 18:28:58
● 2026-08-15 04:57:34

●NSdns22.hichina.com2026-02-21 → 2026-08-15 · 3 obs

○ 2017-08-25 16:55:46
● 2026-02-21 18:28:58
● 2026-08-15 04:57:34

○NSns1.firebird.jp2016-03-24 → 2017-08-25 · 5 obs

○ 2015-12-06 07:04:24
● 2016-03-24 14:48:56
● 2017-08-25 16:55:46
○ 2026-02-21 18:28:58
○ 2026-08-15 04:57:34

○NSns1.md-pb-iqsv.com2015-07-24 → 2015-07-24 · 3 obs

● 2015-07-24 07:54:42
○ 2015-12-06 07:04:24
○ 2026-08-15 04:57:34

○NSns2.firebird.jp2016-03-24 → 2017-08-25 · 5 obs

○ 2015-12-06 07:04:24
● 2016-03-24 14:48:56
● 2017-08-25 16:55:46
○ 2026-02-21 18:28:58
○ 2026-08-15 04:57:34

○NSns2.md-pb-iqsv.com2015-07-24 → 2015-07-24 · 3 obs

● 2015-07-24 07:54:42
○ 2015-12-06 07:04:24
○ 2026-08-15 04:57:34

○NSns3.firebird.jp2016-03-24 → 2017-08-25 · 5 obs

○ 2015-12-06 07:04:24
● 2016-03-24 14:48:56
● 2017-08-25 16:55:46
○ 2026-02-21 18:28:58
○ 2026-08-15 04:57:34

○MXcosbb.com2015-07-24 → 2017-08-25 · 6 obs

● 2015-07-24 07:54:42
○ 2015-12-06 07:04:24
● 2016-03-24 14:48:56
● 2017-08-25 16:55:46
○ 2026-02-21 18:28:58
○ 2026-08-15 04:57:34

●MXmx1.qiye.aliyun.com2026-07-11 → 2026-08-15 · 3 obs

○ 2026-02-21 18:28:58
● 2026-07-11 05:42:46
● 2026-08-15 04:57:34

●MXmx2.qiye.aliyun.com2026-07-11 → 2026-08-15 · 3 obs

○ 2026-02-21 18:28:58
● 2026-07-11 05:42:46
● 2026-08-15 04:57:34

●MXmx3.qiye.aliyun.com2026-07-11 → 2026-08-15 · 3 obs

○ 2026-02-21 18:28:58
● 2026-07-11 05:42:46
● 2026-08-15 04:57:34

○A112.78.117.1122016-03-24 → 2017-08-25 · 5 obs

○ 2015-12-06 07:04:24
● 2016-03-24 14:48:56
● 2017-08-25 16:55:46
○ 2026-02-21 18:28:58
○ 2026-08-15 04:57:34

○A66.221.97.2092015-07-24 → 2015-07-24 · 3 obs

● 2015-07-24 07:54:42
○ 2015-12-06 07:04:24
○ 2026-08-15 04:57:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cosbb.com	dns21.hichina.com, dns22.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.40

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cosbb.com (unsigned zone)

⏱️ Timing

Total: 591ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns22.hichina.com, dns21.hichina.com`
MX	3	`mx2.qiye.aliyun.com (pri: 10), mx1.qiye.aliyun.com (pri: 5)...`
TXT	1	`v=spf1 include:spf.qiye.aliyun.com -all`
SOA	1	`dns21.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns21.hichina.com, dns21.hichina.com, dns21.hichina.com...)

Analysis

Name Servers

The NS records for cosbb.com delegate to dns21.hichina.com and dns22.hichina.com.

cosbb.com shares its name server setup with other domains, including njztgs.com, 833499.com.cn, aumu.com and two others.

cosbb.com has overlapping name servers with several other domains — among them ipidan.com, bkyv.com, aitas.cn and oxymall.com.

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

Host names with 9 IP numbers:

dns21.hichina.com maps to 39.96.153.40, 39.96.153.60, 47.118.199.200 and 6 additional IP addresses.

dns22.hichina.com maps to 39.96.153.38, 39.96.153.61, 47.118.199.198 and 6 additional IP addresses.

Mail Servers

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

cosbb.com shares mail servers — at least in part — with other domains, including jxsrhy.com, kuliwu.com, plusfint.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.