dbclass.cn - robtex.com
dbclass.cn
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=2034593898 | ||||||
Subdomains
live.dbclass.cn |
Same first word
Similar names
scdlabs.com |
csdlabs.com |
classdb.de |
dsclabs.com |
cdslabs.com |
cdslabs.net |
sdclabs.com |
cssdlab.com |
bcsadsl.ddns.net |
classdb.com |
bdclass.com |
classbd.com |
DNS History
6 records (6 active, 0 former)
●NSdns31.hichina.com2026-02-24 → 2026-03-27 · 2 obs
● 2026-03-27 13:37:26
●NSdns32.hichina.com2026-02-24 → 2026-03-27 · 2 obs
● 2026-03-27 13:37:26
●MXmx1.qiye.aliyun.com2026-02-24 → 2026-03-27 · 2 obs
● 2026-03-27 13:37:26
●MXmx2.qiye.aliyun.com2026-02-24 → 2026-03-27 · 2 obs
● 2026-03-27 13:37:26
●MXmx3.qiye.aliyun.com2026-02-24 → 2026-03-27 · 2 obs
● 2026-03-27 13:37:26
●A82.157.20.1772026-02-24 → 2026-03-27 · 2 obs
● 2026-03-27 13:37:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| dbclass.cn | dns31.hichina.com, dns32.hichina.com | - |
✅ Authoritative Response
Server:120.76.107.39
NS records: dns31.hichina.com, dns32.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dbclass.cn (unsigned zone)
⏱️ Timing
Total: 4085ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 82.157.20.177 |
| NS | 2 | dns31.hichina.com, dns32.hichina.com |
| MX | 3 | mx2.qiye.aliyun.com (pri: 10), mx1.qiye.aliyun.com (pri: 5)... |
| TXT | 1 | v=spf1 include:spf.qiye.aliyun.com -all |
| SOA | 1 | dns31.hichina.com hostmaster.hichina.com |
Analysis
Hierarchy
The parent of live.dbclass.cn is dbclass.cn.
IP Addresses
dbclass.cn points to IP number: 82.157.20.177.
Name Servers
dbclass.cn is delegated to two name servers: dns31.hichina.com and dns32.hichina.com.
dbclass.cn shares the same name server setup as tongwoo.cn, global-ngo.com, chaoshijue.com, doai.site and ttapps.net.
dbclass.cn at least partially shares name servers with other domains, for instance beriuty.com, xeld.cn, qingxueche.com, kokko.cn and ff71.cn.
These name servers are commonly used with expirens3.hichina.com and expirens4.hichina.com.
Nine IP numbers per host:
dns31.hichina.com points to: 2408:4009:501::39, 39.96.153.39, 39.96.153.59, 47.118.199.199, 47.118.199.219, 120.76.107.39, 120.76.107.59, 139.224.142.99 and 139.224.142.109.
dns32.hichina.com points to: 2408:4009:501::40, 39.96.153.37, 39.96.153.62, 47.118.199.197, 47.118.199.221, 120.76.107.37, 120.76.107.62, 139.224.142.102 and 139.224.142.107.
Mail Servers
Three mail servers handle dbclass.cn: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.
dbclass.cn shares at least partially some mail servers with other domains, including jejot.com, golden-max.com, online-ae.com, chta.com.cn and geeks-art.com.
these mail servers are commonly used with mxn.mxhichina.com and mxw.mxhichina.com.
Two-IP host names: mx3.qiye.aliyun.com points to 47.246.136.231 and 47.246.137.47.
One-IP host names: mx1.qiye.aliyun.com points to 47.246.137.47 and 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.