a2db.com - dns.ninja

`a2db.com`

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,}
MX	`mxdomain.qq.com` ⭐
SOA	`dns9.hichina.com`hostmaster@hichina.com 2026-06-04 #13

`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=1785675832

Same first word

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DNS History

6 records (3 active, 3 former)

●NSdns10.hichina.com2016-06-28 → 2026-08-02 · 2 obs

● 2016-06-28 18:04:54
● 2026-08-02 13:33:48

●NSdns9.hichina.com2016-06-28 → 2026-08-02 · 2 obs

● 2016-06-28 18:04:54
● 2026-08-02 13:33:48

○MXmail.a2db.com2017-06-01 → 2017-06-01 · 4 obs

○ 2016-11-23 06:42:38
● 2017-06-01 05:59:56
○ 2026-02-21 16:17:32
○ 2026-08-02 13:33:48

●MXmxdomain.qq.com2016-11-23 → 2026-08-02 · 5 obs

○ 2016-06-28 18:04:54
● 2016-11-23 06:42:38
○ 2017-06-01 05:59:56
● 2026-02-21 16:17:32
● 2026-08-02 13:33:48

○MXmxn.mxhichina.com2016-06-28 → 2016-06-28 · 3 obs

● 2016-06-28 18:04:54
○ 2016-11-23 06:42:38
○ 2026-08-02 13:33:48

○MXmxw.mxhichina.com2016-06-28 → 2016-06-28 · 3 obs

● 2016-06-28 18:04:54
○ 2016-11-23 06:42:38
○ 2026-08-02 13:33:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net...	-
a2db.com	dns9.hichina.com, dns10.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.42

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a2db.com (unsigned zone)

⏱️ Timing

Total: 3610ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns9.hichina.com, dns10.hichina.com`
MX	1	`mxdomain.qq.com (pri: 10)`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)

Analysis

Name Servers

Two name servers handle the delegation for a2db.com: dns10.hichina.com and dns9.hichina.com.

a2db.com has the same name server delegation as a number of other domains, such as cube-china.com, artsping.com, vres.cn and two more.

a2db.com partially shares its NS delegation with several other domains, including husky.red, upspce.com, qgdz.com and two others.

These name servers are regularly seen alongside expirens3.hichina.com and expirens4.hichina.com as name servers.

Host names resolving to 9 IP numbers:

dns10.hichina.com resolves to 39.96.153.41, 39.96.153.51 and 47.118.199.201 among others, with 6 other IP addresses in total.

dns9.hichina.com resolves to 39.96.153.42, 39.96.153.52 and 47.118.199.202 among others, with 6 other IP addresses in total.

Mail Servers

a2db.com routes its mail through a single mail server, mxdomain.qq.com.

a2db.com has the same mail server arrangement as a number of other domains, for example nnfzw.gov.cn, isnssdk.com, bees-china.com and two more.

The MX records for a2db.com are at least partially shared with other domains, such as sohubei.com, zcgg.net, huehu.com and chinafpma.org.