cerschool.com - robtex.com
cerschool.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns13.hichina.com ⭐ | ||||||
| A | 2408:4009:501::21🇨🇳 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 | dns14.hichina.com | ||||||
| A | 2408:4009:501::22🇨🇳 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 | mx1.qiye.aliyun.com ⭐ | ||||||
| A | 47.246.137.47🇺🇸 Alibaba-Cloud47.246.136.0/22 Alibaba CLoud | ||||||
| MX | mx2.qiye.aliyun.com(10) | ||||||
| A | 47.246.146.255🇺🇸 Alibaba-Cloud47.246.146.0/24 Alibaba Cloud | ||||||
| MX | mx3.qiye.aliyun.com(15) | ||||||
| A | 47.246.146.58🇺🇸 Alibaba-Cloud47.246.146.0/24 Alibaba Cloud | ||||||
| A | 47.246.146.255🇺🇸 Alibaba-Cloud47.246.146.0/24 Alibaba Cloud | ||||||
| TXT | v=spf1 include:spf.qiye.aliyun.com -all | ||||||
| SOA | dns13.hichina.comhostmaster@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.netnstld@verisign-grs.com serial=1774913127 | ||||||
Same first word
cerschool.edu.cn |
cerschool.com |
Similar names
DNS History
5 records (5 active, 0 former)
●NSdns13.hichina.com2026-03-19 → 2026-03-30 · 2 obs
● 2026-03-30 23:55:18
●NSdns14.hichina.com2026-03-19 → 2026-03-30 · 2 obs
● 2026-03-30 23:55:18
●MXmx1.qiye.aliyun.com2026-03-19 → 2026-03-30 · 2 obs
● 2026-03-30 23:55:18
●MXmx2.qiye.aliyun.com2026-03-19 → 2026-03-30 · 2 obs
● 2026-03-30 23:55:18
●MXmx3.qiye.aliyun.com2026-03-19 → 2026-03-30 · 2 obs
● 2026-03-30 23:55:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| cerschool.com | dns13.hichina.com, dns14.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.42
NS records: dns13.hichina.com, dns14.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cerschool.com (unsigned zone)
⏱️ Timing
Total: 3536ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns14.hichina.com, dns13.hichina.com |
| MX | 3 | mx3.qiye.aliyun.com (pri: 15), mx2.qiye.aliyun.com (pri: 10)... |
| TXT | 1 | v=spf1 include:spf.qiye.aliyun.com -all |
| SOA | 1 | dns13.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns13.hichina.com, dns13.hichina.com, dns13.hichina.com...)
Analysis
Name Servers
Two name servers dns13.hichina.com and dns14.hichina.com are delegated to cerschool.com.
cerschool.com uses the same name server configuration as other domains, such as chinazhuozhan.com, erehau.com, cuberelo.com, jnyz8.com and sz-hscapital.com.
cerschool.com at least partially shares name servers with other domains such as echina.net, sdefy.com, trimaxcn.com, cnseb.cn and 521aa.com.
These name servers are commonly used with expirens3.hichina.com and expirens4.hichina.com.
Two hosts with nine IPs each:
Host dns13.hichina.com points to 2408:4009:501::21, 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.
Host dns14.hichina.com points to 2408:4009:501::22, 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.
Mail Servers
cerschool.com is handled by three mail servers: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.
cerschool.com shares mail servers with other domains at least in part, for instance wondfo.com.cn, 363636.cn, yuanjude.com, wealnet.net and zzdefender.com.
These mail servers are commonly used together with mxw.mxhichina.com and mxn.mxhichina.com.
Host names with two IP numbers
The host mx3.qiye.aliyun.com points to 47.246.146.58 and 47.246.146.255
Host names with one IP number
The host mx1.qiye.aliyun.com points to 47.246.137.47
The host mx2.qiye.aliyun.com points to 47.246.146.255
Host names pointing to 47.246.146.255