`bjzb.com`

DNSSEC	⚠️ Not signed
A	120.48.228.29^{🇨🇳 Baidu120.48.224.0/20}
NS	`dns1.hichina.com` ⭐
		A	2408:4009:501::9^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.63^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.213^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.63^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.113^{🇨🇳 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	139.224.142.123^{🇨🇳 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	`dns2.hichina.com`
		A	2408:4009:501::10^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.44^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.54^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.204^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.214^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.44^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.54^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.114^{🇨🇳 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	139.224.142.124^{🇨🇳 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.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽²⁰⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽³⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`verification-code-site-App_feishu=8Y4ACMaAqPdasN0QkokQ`
TXT	`v=spf1 +include:_netblocks.m.feishu.cn ~all`
SOA	`dns1.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=1774374827

Same first word

bjzb.com

Similar names

bzbj.cn

bzjb.com

jbzb.cz

jbbz.at

zbbj.cn

jbbz.com

bjbz.cn

bbjz.cn

jbbz.net

jzbb.com

zbjb.com

jbzb.com.cn

bbzj.net

jbbz.ch

zbjb.cn

zbjb.net

DNS History

9 records (6 active, 3 former)

●NSdns1.hichina.com2015-08-19 → 2026-03-24 · 2 obs

● 2015-08-19 19:28:16
● 2026-03-24 18:15:18

●NSdns2.hichina.com2015-08-19 → 2026-03-24 · 2 obs

● 2015-08-19 19:28:16
● 2026-03-24 18:15:18

●MXmx1.feishu.cn2026-03-03 → 2026-03-24 · 3 obs

○ 2018-10-20 11:54:46
● 2026-03-03 09:12:48
● 2026-03-24 18:15:18

●MXmx2.feishu.cn2026-03-03 → 2026-03-24 · 3 obs

○ 2018-10-20 11:54:46
● 2026-03-03 09:12:48
● 2026-03-24 18:15:18

●MXmx3.feishu.cn2026-03-03 → 2026-03-24 · 3 obs

○ 2018-10-20 11:54:46
● 2026-03-03 09:12:48
● 2026-03-24 18:15:18

○MXmxcom.263xmail.com2015-08-19 → 2018-10-20 · 4 obs

● 2015-08-19 19:28:16
● 2018-10-20 11:54:46
○ 2026-03-03 09:12:48
○ 2026-03-24 18:15:18

○MXmxwcom.263xmail.com2015-08-19 → 2018-10-20 · 4 obs

● 2015-08-19 19:28:16
● 2018-10-20 11:54:46
○ 2026-03-03 09:12:48
○ 2026-03-24 18:15:18

●A120.48.228.292026-03-03 → 2026-03-24 · 3 obs

○ 2018-10-20 11:54:46
● 2026-03-03 09:12:48
● 2026-03-24 18:15:18

○A211.167.87.1982015-08-19 → 2018-10-20 · 4 obs

● 2015-08-19 19:28:16
● 2018-10-20 11:54:46
○ 2026-03-03 09:12:48
○ 2026-03-24 18:15:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bjzb.com	dns2.hichina.com, dns1.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.43

NS records: dns2.hichina.com, dns1.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bjzb.com (unsigned zone)

⏱️ Timing

Total: 528ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`120.48.228.29`
NS	2	`dns1.hichina.com, dns2.hichina.com`
MX	3	`mx1.feishu.cn (pri: 10), mx3.feishu.cn (pri: 30)...`
TXT	2	`verification-code-site-App_feishu=8Y4ACM, v=spf1 +include:_netblocks.m.feishu.cn`
SOA	1	`dns1.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns2.hichina.com, dns2.hichina.com, dns2.hichina.com...)

Analysis

IP Addresses

bjzb.com points to a single IP: 120.48.228.29.

Name Servers

Two name servers dns1.hichina.com and dns2.hichina.com handle delegation for bjzb.com.

bjzb.com uses the same name server setup as other domains, for example xzusa.com, cletc.com, tzsealing.com, zeta-villa.net and chgx.cn.

bjzb.com partially shares name servers with other domains; examples include lithmachine.com, 37940.cn, shaowuren.com, zhaowadao.com and beiguan.gov.cn.

These name servers commonly accompany expirens3.hichina.com, expirens4.hichina.com, dns10.hichina.com and dns9.hichina.com.

Host names with nine IP numbers:

dns1.hichina.com points to: 2408:4009:501::9, 39.96.153.43, 39.96.153.63, 47.118.199.203, 47.118.199.213, 120.76.107.43, 120.76.107.63, 139.224.142.113 and 139.224.142.123.

dns2.hichina.com points to: 2408:4009:501::10, 39.96.153.44, 39.96.153.54, 47.118.199.204, 47.118.199.214, 120.76.107.44, 120.76.107.54, 139.224.142.114 and 139.224.142.124.

Mail Servers

bjzb.com is handled by three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

bjzb.com shares some mail servers with other domains, at least partially, such as gzchenxuan.com, yzjiankang.com, wenhairu.com, aitibao.com and doviapps.com.