bza.edu.cn - robtex.com

bza.edu.cn

DNSSEC⚠️ Not signed
A59.110.20.75🇨🇳 Alibaba-Cloud59.110.0.0/17 CT BeiJing IDC
NSns1.service.edu.cn ⭐
A2001:da8:257:2222::8888🇨🇳 ERX-CERNET-BKB2001:da8:257::/48
A202.112.5.49🇨🇳 ERX-CERNET-BKB202.112.0.0/16
PTRns1.service.edu.cn
NSns2.service.edu.cn
A2001:da8:257:1111::8888🇨🇳 ERX-CERNET-BKB2001:da8:257::/48
A202.112.4.49🇨🇳 CNGI-BJ-IX2-AS-AP202.112.4.0/24 CMI (Customer Route)
PTRns2.service.edu.cn
MXmx1.qiye.aliyun.com ⭐
A47.246.137.47🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud
MXmx2.qiye.aliyun.com(5)
A47.246.136.231🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud
PTRcz-clare.com
PTRreachsmartdwell.com
PTRwevolt.tech
MXmx3.qiye.aliyun.com(10)
A47.246.136.231🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud
PTRcz-clare.com
PTRreachsmartdwell.com
PTRwevolt.tech
A47.246.137.47🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud
TXTv=spf1 include:spf.qiye.aliyun.com -all
SOAns1.service.edu.cnserv@cernet.com serial=2795938300

edu.cn

DNSSEC⚠️ Not signed
NSdns2.edu.cn ⭐
NSdns.edu.cn
NSdns3.edu.cn
NSns2.cernet.net ⚠️ Not in parent delegation
NSns4.cernet.net ⚠️ Not in parent delegation
NSns5.cernet.net ⚠️ Not in parent delegation
SOAdns.edu.cnhostmaster@net.edu.cn 2026-04-09 #80
WOT: SAFE (85/100)

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DNS History

6 records (6 active, 0 former)

NSns1.service.edu.cnns2.service.edu.cnMXmx1.qiye.aliyun.commx2.qiye.aliyun.commx3.qiye.aliyun.comA59.110.20.75
●NSns1.service.edu.cn2026-04-01 → 2026-04-11 · 2 obs
● 2026-04-01 07:31:00
● 2026-04-11 18:51:44
●NSns2.service.edu.cn2026-04-01 → 2026-04-11 · 2 obs
● 2026-04-01 07:31:00
● 2026-04-11 18:51:44
●MXmx1.qiye.aliyun.com2026-04-01 → 2026-04-11 · 2 obs
● 2026-04-01 07:31:00
● 2026-04-11 18:51:44
●MXmx2.qiye.aliyun.com2026-04-01 → 2026-04-11 · 2 obs
● 2026-04-01 07:31:00
● 2026-04-11 18:51:44
●MXmx3.qiye.aliyun.com2026-04-01 → 2026-04-11 · 2 obs
● 2026-04-01 07:31:00
● 2026-04-11 18:51:44
●A59.110.20.752026-04-01 → 2026-04-11 · 2 obs
● 2026-04-01 07:31:00
● 2026-04-11 18:51:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
edu.cndns.edu.cn, ns2.cernet.net, ns4.cernet.net, ns5.cernet.net...6 records
bza.edu.cnns2.service.edu.cn, ns1.service.edu.cn4 records

✅ Authoritative Response

Server:202.112.4.49

NS records: ns2.service.edu.cn, ns1.service.edu.cn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bza.edu.cn (unsigned zone)

⏱️ Timing

Total: 1755ms | Queries: -

📄 Records

TypeCountSample Data
A159.110.20.75
NS2ns2.service.edu.cn, ns1.service.edu.cn
MX3mx3.qiye.aliyun.com (pri: 10), mx1.qiye.aliyun.com (pri: 1)...
TXT1v=spf1 include:spf.qiye.aliyun.com -all
SOA1ns1.service.edu.cn serv.cernet.com

📌 Glue Records Collected

Total: 10

In-bailiwick: 6 (dns.edu.cn, dns.edu.cn, dns2.edu.cn...)

Out-of-bailiwick: 4 (ns2.service.edu.cn, ns1.service.edu.cn, ns2.service.edu.cn...)

Analysis

IP Addresses

bza.edu.cn resolves to one IP number: 59.110.20.75.

Other host names, for instance yuanweishuzi.com, share IP numbers with bza.edu.cn.

Name Servers

bza.edu.cn is delegated to two name servers ns1.service.edu.cn and ns2.service.edu.cn.

bza.edu.cn shares the same name server setup as other domains, for instance ncet.edu.cn, nncvt.edu.cn, ynczy.edu.cn, zkpvc.edu.cn and ncnu.edu.cn.

bza.edu.cn at least partially shares name servers with other domains, for instance hbafa.edu.cn, jvcit.edu.cn, pyvtc.edu.cn and syuct.edu.cn.

Host names with two IP numbers:

The host name ns1.service.edu.cn points to 2001:da8:257:2222::8888 and 202.112.5.49; the host name ns2.service.edu.cn points to 2001:da8:257:1111::8888 and 202.112.4.49.

Mail Servers

bza.edu.cn is handled by three mail servers: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.

bza.edu.cn shares some mail servers with other domains, at least partially, for instance shwarm.com, zhiqigroup.com, onlever.com, yuntuchip.com and salesplastics.com.

Two IP numbers: mx3.qiye.aliyun.com points to 47.246.136.231 and 47.246.137.47.

One IP number: mx1.qiye.aliyun.com points to 47.246.137.47.

mx2.qiye.aliyun.com points to 47.246.136.231.

Hosts pointing to 47.246.136.231: mx3.qiye.aliyun.com and mx2.qiye.aliyun.com.

Hosts pointing to 47.246.137.47: mx3.qiye.aliyun.com and mx1.qiye.aliyun.com.