lpdc.ac.cn - robtex.com
lpdc.ac.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns.lpdc.ac.cn ⭐ | ||||||
| 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 | ||||||
| SOA | ns.lpdc.ac.cnmail@lpdc.ac.cn serial=5 | ||||||
ac.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2027268872 | ||||||
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSns.lpdc.ac.cn2026-05-01 → 2026-05-12 · 2 obs
● 2026-05-12 04:37:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| lpdc.ac.cn | ns3.cstnet.cn, ns4.cstnet.cn | - |
✅ Authoritative Response
Server:159.226.18.14
NS records: ns3.cstnet.cn, ns4.cstnet.cn
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at lpdc.ac.cn: Error: DNS query timeout: 203.119.29.1 for DS lpdc.ac.cn
⏱️ Timing
Total: 4686ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns3.cstnet.cn, ns4.cstnet.cn |
| SOA | 1 | ns.lpdc.ac.cn mail.lpdc.ac.cn |
Analysis
Name Servers
lpdc.ac.cn is delegated to three name servers: ns3.cstnet.cn, ns4.cstnet.cn and ns.lpdc.ac.cn.
lpdc.ac.cn at least partially shares its name servers with other domains, for instance casnw.net, gdas.ac.cn, iap.ac.cn, math.ac.cn and cas.ac.cn.
These name servers are commonly paired with ns1.xgslb.net, ns.sdb.ac.cn, ns.kepu.com.cn, ns, nieer.sccas.cn, ns1.cdns.cn, ns1.sfn.cn, ns2.sfn.cn and giecns1.giec.ac.cn.
Host names with a single IP:
ns3.cstnet.cn resolves to 159.226.18.13.
ns4.cstnet.cn resolves to 159.226.18.14.