nbclass.com - dns.ninja

`nbclass.com`

DNSSEC	⚠️ Not signed
A	121.199.57.240^{🇨🇳 Alibaba-Cloud121.199.0.0/16}
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 2026-01-12 #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=1785189702

Same first word

nbclass.com

Similar names

csnlabs.com

sbsclan.com

cnslabs.in

nsclabs.com

DNS History

10 records (4 active, 6 former)

●NSdns10.hichina.com2016-07-05 → 2026-07-27 · 3 obs

○ 2016-03-12 23:07:40
● 2016-07-05 10:31:14
● 2026-07-27 22:25:28

●NSdns9.hichina.com2016-07-05 → 2026-07-27 · 3 obs

○ 2016-03-12 23:07:40
● 2016-07-05 10:31:14
● 2026-07-27 22:25:28

○NSwww.nbclass.com2015-07-23 → 2015-12-02 · 4 obs

● 2015-07-23 15:56:32
● 2015-12-02 08:48:52
○ 2016-03-12 23:07:40
○ 2026-07-27 22:25:28

○MXio.bouncemx.com2015-12-02 → 2015-12-02 · 3 obs

● 2015-12-02 08:48:52
○ 2016-03-12 23:07:40
○ 2026-07-27 22:25:28

●MXmxdomain.qq.com2020-01-30 → 2026-07-27 · 5 obs

○ 2016-03-12 23:07:40
● 2020-01-30 15:37:24
○ 2020-11-23 19:19:04
● 2026-07-27 22:25:26
● 2026-07-27 22:25:28

●A121.199.57.2402026-07-27 → 2026-07-27 · 3 obs

○ 2020-11-23 19:19:04
● 2026-07-27 22:25:26
● 2026-07-27 22:25:28

○A47.99.105.1212020-01-30 → 2020-11-23 · 5 obs

○ 2016-03-12 23:07:40
● 2020-01-30 15:37:24
● 2020-11-23 19:19:04
○ 2026-07-27 22:25:26
○ 2026-07-27 22:25:28

○A70.39.84.2312015-07-23 → 2015-07-23 · 3 obs

● 2015-07-23 15:56:32
○ 2026-07-27 22:25:26
○ 2026-07-27 22:25:28

○A70.39.84.2332015-12-02 → 2015-12-02 · 4 obs

○ 2015-07-23 15:56:32
● 2015-12-02 08:48:52
○ 2016-03-12 23:07:40
○ 2026-07-27 22:25:28

○CNAMEn.dcoin.co2015-07-23 → 2015-12-02 · 4 obs

● 2015-07-23 15:56:32
● 2015-12-02 08:48:52
○ 2016-03-12 23:07:40
○ 2026-07-27 22:25:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net...	-
nbclass.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 nbclass.com (unsigned zone)

⏱️ Timing

Total: 673ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.199.57.240`
NS	2	`dns10.hichina.com, dns9.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

IP Addresses

nbclass.com has exactly one IP address — 121.199.57.240.

Name Servers

nbclass.com has two authoritative name servers — dns10.hichina.com and dns9.hichina.com.

The name server configuration of nbclass.com is shared with other domains, for instance lh-motor.com, huoker.com, lnmir.net and two others.

nbclass.com partially shares its NS delegation with several other domains, including lcfdiy.com, xiaoyucun.com, ctripgou.com and two others.

The name servers ns1.alidns.com, ns2.alidns.com, expirens3.hichina.com and expirens4.hichina.com are often found in use alongside these name servers.

Hosts with 9 IP addresses each:

dns10.hichina.com points to 39.96.153.41, 39.96.153.51, 47.118.199.201 and 6 other IP addresses.

dns9.hichina.com points to 39.96.153.42, 39.96.153.52, 47.118.199.202 and 6 other IP addresses.

Mail Servers

nbclass.com uses one mail server — mxdomain.qq.com.

The mail server setup of nbclass.com matches that of other domains such as cloudlunar.com, safeidc.cn, doyo.com and two others.

At least some of the mail servers used by nbclass.com are shared with other domains: aoshang.cc, asyxi.com, ycgh.com and two others among them.

The mail servers mxn.mxhichina.com and mxw.mxhichina.com regularly co-occur with these mail servers.