esdc.ac.cn - robtex.com
esdc.ac.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 124.17.4.60🇨🇳 CSTNET-AS-AP124.17.4.0/24 | ||||||
| NS | ns1.sfn.cn ⭐ | ||||||
| A | 111.63.77.29🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route) | ||||||
| NS | ns2.sfn.cn | ||||||
| A | 101.37.119.99🇨🇳 Alibaba-Cloud101.37.0.0/17 | ||||||
| A | 111.63.77.30🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route) | ||||||
| SOA | ns1.sfn.cnroot@ns1.sfn.cn 2026-05-11 #6 | ||||||
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=2027268821 | ||||||
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●A124.17.4.602026-05-03 → 2026-05-11 · 2 obs
● 2026-05-11 00:28:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, d.dns.cn, e.dns.cn, b.dns.cn... | - |
| esdc.ac.cn | ns1.sfn.cn, ns2.sfn.cn | - |
✅ Authoritative Response
Server:111.63.77.29
NS records: ns1.sfn.cn, ns2.sfn.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for esdc.ac.cn (unsigned zone)
⏱️ Timing
Total: 1741ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 124.17.4.60 |
| NS | 2 | ns1.sfn.cn, ns2.sfn.cn |
| SOA | 1 | ns1.sfn.cn root.ns1.sfn.cn |
Analysis
IP Addresses
esdc.ac.cn points to a single IP number: 124.17.4.60.
Name Servers
Delegation for esdc.ac.cn rests with two name servers, ns1.sfn.cn and ns2.sfn.cn.
esdc.ac.cn shares the same name server setup as other domains, including sagc.org.cn, sunhome.com.cn, hncarbon.com.cn, chikan.gov.cn and zqlinye.gov.cn.
esdc.ac.cn at least partially shares name servers with other domains, for instance sciencep.com, gzstats.gov.cn, seislab.cn, lhk.gov.cn and dand.com.cn.
Host names with two IP numbers:
ns2.sfn.cn points to 101.37.119.99 and 111.63.77.30.
Host names with one IP number:
ns1.sfn.cn points to 111.63.77.29.