codata.cn - dns.ninja
codata.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 159.226.242.225🇨🇳 CSTNET-AS-AP159.226.242.0/23 | ||||||
| NS | ns.sdb.ac.cn ⭐ | ||||||
| A | 2001:cc0:2008:12::12🇨🇳 CSTNET-AS-AP2001:cc0::/32 CHINA SCIENCE AND TECHNOLOGY NETWORK | ||||||
| A | 159.226.12.1🇨🇳 CSTNET-AS-AP159.226.0.0/16 CSTNET's IP | ||||||
| NS | ns3.cstnet.cn | ||||||
| A | 159.226.18.13🇨🇳 CSTNET-AS-AP159.226.0.0/16 CSTNET's IP | ||||||
| NS | ns4.cstnet.cn | ||||||
| A | 159.226.18.14🇨🇳 CSTNET-AS-AP159.226.0.0/16 CSTNET's IP | ||||||
| MX | mx.cstnet.cn ⭐ | ||||||
| A | 159.226.251.12🇨🇳 CSTNET-AS-AP159.226.0.0/16 CSTNET's IP | ||||||
| PTR | mx.cstnet.cn | ||||||
| SOA | ns.sdb.ac.cnroot@codata.cn 2019-03-11 #21 | ||||||
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 2035-11-06 #71 | ||||||
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
○NSns2.sdb.ac.cn2015-08-04 → 2017-09-06 · 4 obs
● 2017-09-06 15:13:58
○ 2026-02-15 21:01:48
○ 2026-07-30 10:49:36
●NSns3.cstnet.cn2026-02-15 → 2026-07-30 · 3 obs
● 2026-02-15 21:01:48
● 2026-07-30 10:49:36
●NSns4.cstnet.cn2026-02-15 → 2026-07-30 · 3 obs
● 2026-02-15 21:01:48
● 2026-07-30 10:49:36
●A159.226.242.2252026-02-15 → 2026-07-30 · 2 obs
● 2026-07-30 10:49:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| codata.cn | ns3.cstnet.cn, ns4.cstnet.cn | 2 records |
✅ Authoritative Response
Server:159.226.18.13
NS records: ns3.cstnet.cn, ns4.cstnet.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codata.cn (unsigned zone)
⏱️ Timing
Total: 1043ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 159.226.242.225 |
| NS | 2 | ns4.cstnet.cn, ns3.cstnet.cn |
| MX | 1 | mx.cstnet.cn (pri: 10) |
| SOA | 1 | ns.sdb.ac.cn root.codata.cn |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns3.cstnet.cn, ns4.cstnet.cn)
Analysis
IP Addresses
codata.cn has exactly one IP address — 159.226.242.225.
www.sciencep.com, www.cngrid.org, gic.ac.cn plus two other host names have IP numbers in common with codata.cn.
Name Servers
codata.cn is served by three name servers: ns3.cstnet.cn, ns4.cstnet.cn and ns.sdb.ac.cn.
The name servers of codata.cn overlap at least partially with those of other domains — among them ivpp.ac.cn, ipc.ac.cn, cnic.cn and two more.
These name servers tend to appear together with the name servers ns1.xgslb.net, ns.kepu.com.cn and ns, plus two others.
Host names pointing to two IP addresses:
The A records for ns.sdb.ac.cn return 159.226.12.1 and 2001:cc0:2008:12::12.
Host names resolving to a single IP address:
ns3.cstnet.cn resolves to the IP address 159.226.18.13.
ns4.cstnet.cn resolves to the IP address 159.226.18.14.
Mail Servers
codata.cn uses one mail server — mx.cstnet.cn.
The mail server setup of codata.cn matches that of other domains such as sippe.ac.cn, spaceweather.ac.cn, casnw.net and two others.
mx.cstnet.cn resolves to 159.226.251.12 and no other IP number.