`51nb88.com`

DNSSEC	⚠️ Not signed
NS	`vip7.alidns.com` ⭐
		A	2408:4009:500::7^{🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group}
		A	8.212.93.7^{🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	47.88.82.208^{🇺🇸 Alibaba-Cloud47.88.64.0/18 Alibaba Cloud}
		A	47.253.24.27^{🇺🇸 Alibaba-Cloud47.253.0.0/17 Alibaba CLoud}
		A	47.254.160.176^{🇩🇪 Alibaba-Cloud47.254.160.0/19 Alibaba Cloud}
		A	140.205.1.13^{🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	170.33.32.214^{🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.80.14^{🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
NS	`ns8.alidns.com` ⚠️ Not in zone NS records
		A	2408:4009:501::4^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.48^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.58^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.208^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.218^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.48^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.58^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.101^{🇨🇳 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	139.224.142.118^{🇨🇳 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	`vip8.alidns.com` ⚠️ Not in parent delegation
		A	2408:4009:500::8^{🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group}
		A	8.212.93.8^{🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	47.88.82.209^{🇺🇸 Alibaba-Cloud47.88.64.0/18 Alibaba Cloud}
		A	47.253.24.28^{🇺🇸 Alibaba-Cloud47.253.0.0/17 Alibaba CLoud}
		A	47.254.160.177^{🇩🇪 Alibaba-Cloud47.254.160.0/19 Alibaba Cloud}
		A	140.205.1.14^{🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	170.33.32.215^{🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		A	170.33.80.15^{🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
SOA	`vip7.alidns.com`hostmaster@hichina.com 2026-03-20 #15

`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

📈 Tranco rank: #284,292

Same first word

51nb88.com

DNS History

8 records (3 active, 5 former)

○NSf1g1ns1.dnspod.net2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 12:18:30
○ 2017-10-04 15:03:36
○ 2026-03-23 20:44:16

○NSf1g1ns2.dnspod.net2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 12:18:30
○ 2017-10-04 15:03:36
○ 2026-03-23 20:44:16

○NSns1.alidns.com2026-03-22 → 2026-03-22 · 3 obs

○ 2017-10-04 15:03:36
● 2026-03-22 09:05:16
○ 2026-03-23 20:44:16

○NSns2.alidns.com2026-03-22 → 2026-03-22 · 3 obs

○ 2017-10-04 15:03:36
● 2026-03-22 09:05:16
○ 2026-03-23 20:44:16

●NSns8.alidns.com2026-03-22 → 2026-03-23 · 3 obs

○ 2017-10-04 15:03:36
● 2026-03-22 09:05:16
● 2026-03-23 20:44:16

●NSvip7.alidns.com2026-03-22 → 2026-03-23 · 3 obs

○ 2017-10-04 15:03:36
● 2026-03-22 09:05:16
● 2026-03-23 20:44:16

●NSvip8.alidns.com2026-03-23 → 2026-03-23 · 2 obs

○ 2026-03-22 09:05:16
● 2026-03-23 20:44:16

○A123.60.6.1682016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 12:18:30
○ 2017-10-04 15:03:36
○ 2026-03-23 20:44:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
51nb88.com	vip7.alidns.com, ns8.alidns.com	21 records

✅ Authoritative Response

Server:120.76.107.48

NS records: vip7.alidns.com, ns8.alidns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51nb88.com (unsigned zone)

⏱️ Timing

Total: 680ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.alidns.com, ns2.alidns.com`
SOA	1	`ns1.alidns.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 21

Out-of-bailiwick: 21 (vip7.alidns.com, vip7.alidns.com, vip7.alidns.com...)

Analysis

Name Servers

51nb88.com is delegated to three name servers: ns8.alidns.com, vip7.alidns.com and vip8.alidns.com.

51nb88.com at least partially shares its name servers with other domains, for instance 3603602.com, ujhfliop.cc, 339114.lt, nmq1.com and 3659www.com.

these name servers are commonly used with the name servers ns7.alidns.com, expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.

Host names with nine IPs:

ns8.alidns.com points to 2408:4009:501::4, 39.96.153.48, 39.96.153.58, 47.118.199.208, 47.118.199.218, 120.76.107.48, 120.76.107.58, 139.224.142.101 and 139.224.142.118.

Host names with eight IPs:

vip7.alidns.com points to 2408:4009:500::7, 8.212.93.7, 47.88.82.208, 47.253.24.27, 47.254.160.176, 140.205.1.13, 170.33.32.214 and 170.33.80.14.

vip8.alidns.com points to 2408:4009:500::8, 8.212.93.8, 47.88.82.209, 47.253.24.28, 47.254.160.177, 140.205.1.14, 170.33.32.215 and 170.33.80.15.

51nb88.com - robtex.com

51nb88.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Name Servers

`51nb88.com`

`com`