tzschool.cn - robtex.com
tzschool.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.41.41.222🇨🇳 Alibaba-Cloud121.40.0.0/15 | ||||||
| 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, | ||||||
| SOA | dns9.hichina.comhostmaster@hichina.com 2026-01-09 #13 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034784876 | ||||||
Same first word
DNS History
3 records (3 active, 0 former)
●NSdns10.hichina.com2026-04-09 → 2026-05-13 · 2 obs
● 2026-05-13 00:51:30
●NSdns9.hichina.com2026-04-09 → 2026-05-13 · 2 obs
● 2026-05-13 00:51:30
●A121.41.41.2222026-04-09 → 2026-05-13 · 2 obs
● 2026-05-13 00:51:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| tzschool.cn | dns9.hichina.com, dns10.hichina.com | - |
✅ Authoritative Response
Server:39.96.153.52
NS records: dns9.hichina.com, dns10.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tzschool.cn (unsigned zone)
⏱️ Timing
Total: 4687ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.41.41.222 |
| NS | 2 | dns9.hichina.com, dns10.hichina.com |
| SOA | 1 | dns9.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
tzschool.cn points to IP number: 121.41.41.222.
Other host names such as ebanji.com, yqzzxx.com and samfeng.cn share IP numbers with tzschool.cn.
Name Servers
tzschool.cn is delegated to two name servers: dns10.hichina.com and dns9.hichina.com.
tzschool.cn shares the same name server setup as eco-mailer.com, mgsuniverse.com, msbebe.com, maiis.com and tae.cn.
tzschool.cn at least partially shares name servers with other domains, for instance 88m8.net, 9377lt.com, xnups.com, gajw.com and imsibyl.com.
these name servers are commonly used with ns1.alidns.com, ns2.alidns.com, expirens3.hichina.com and expirens4.hichina.com.
Nine IP numbers per host:
dns10.hichina.com points to: 2408:4009:501::18, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.
dns9.hichina.com points to: 2408:4009:501::17, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.