`021mdb.com`

DNSSEC	⚠️ Not signed
A	106.15.181.111^{🇨🇳 Alibaba-Cloud106.15.0.0/16 Alibaba (US) Technology Co., Ltd.}
NS	`dns29.hichina.com` ⭐
		A	2408:4009:501::37^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.39^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.59^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.199^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.219^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.39^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.59^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.99^{🇨🇳 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	139.224.142.109^{🇨🇳 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	`dns30.hichina.com`
		A	2408:4009:501::38^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.37^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.62^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.197^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.221^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.37^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.62^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.102^{🇨🇳 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	139.224.142.107^{🇨🇳 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	`dns29.hichina.com`hostmaster@hichina.com 2026-01-09 #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=1774405722

Same first word

021mdb.com

DNS History

4 records (3 active, 1 former)

●NSdns29.hichina.com2019-12-18 → 2026-03-25 · 2 obs

● 2019-12-18 23:48:58
● 2026-03-25 02:31:30

●NSdns30.hichina.com2019-12-18 → 2026-03-25 · 2 obs

● 2019-12-18 23:48:58
● 2026-03-25 02:31:30

●A106.15.181.1112026-03-25 → 2026-03-25 · 3 obs

○ 2019-12-18 23:48:58
● 2026-03-25 02:31:28
● 2026-03-25 02:31:30

○A106.15.73.1492019-12-18 → 2019-12-18 · 3 obs

● 2019-12-18 23:48:58
○ 2026-03-25 02:31:28
○ 2026-03-25 02:31:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
021mdb.com	dns29.hichina.com, dns30.hichina.com	18 records

✅ Authoritative Response

Server:2408:4009:501::38

NS records: dns29.hichina.com, dns30.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 021mdb.com (unsigned zone)

⏱️ Timing

Total: 2733ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`106.15.181.111`
NS	2	`dns29.hichina.com, dns30.hichina.com`
SOA	1	`dns29.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns29.hichina.com, dns29.hichina.com, dns29.hichina.com...)

Analysis

IP Addresses

021mdb.com points to a single IP number: 106.15.181.111.

Other host names, for instance szmedibo.com, share IP numbers with 021mdb.com.

Name Servers

021mdb.com is delegated to two name servers: dns29.hichina.com and dns30.hichina.com.

021mdb.com shares the same name server setup as other domains, for example zyperfect.com, dgphnst.com, liorque.com, kt2003.com and beijingrainstorm.com.

021mdb.com partially shares name servers with other domains, for instance l4d2.cn, 15rz.com, kingsschool.cn and asiavoila.cn.

These name servers are often used with ns1.alidns.com and ns2.alidns.com.

Host names with nine IP numbers:

dns29.hichina.com points to: 2408:4009:501::37, 39.96.153.39, 39.96.153.59, 47.118.199.199, 47.118.199.219, 120.76.107.39, 120.76.107.59, 139.224.142.99 and 139.224.142.109.

dns30.hichina.com points to: 2408:4009:501::38, 39.96.153.37, 39.96.153.62, 47.118.199.197, 47.118.199.221, 120.76.107.37, 120.76.107.62, 139.224.142.102 and 139.224.142.107.

021mdb.com - robtex.com

021mdb.com

com