oucc.edu.cn - robtex.com
oucc.edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 42.247.40.145🇨🇳 ERX-CERNET-BKB42.246.0.0/15 CERNET | ||||||
| NS | ns1.service.edu.cn ⭐ | ||||||
| A | 2001:da8:257:2222::8888🇨🇳 ERX-CERNET-BKB2001:da8:257::/48 | ||||||
| A | 202.112.5.49🇨🇳 ERX-CERNET-BKB202.112.0.0/16 | ||||||
| NS | ns2.service.edu.cn | ||||||
| A | 2001:da8:257:1111::8888🇨🇳 ERX-CERNET-BKB2001:da8:257::/48 | ||||||
| A | 202.112.4.49🇨🇳 CNGI-BJ-IX2-AS-AP202.112.4.0/24 CMI (Customer Route) | ||||||
| SOA | ns1.service.edu.cnsysadm@admin.cn serial=2747552361 | ||||||
edu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns.edu.cn ⚠️ Not in zone NS records | ||||||
| NS | dns2.edu.cn ⚠️ Not in zone NS records | ||||||
| NS | dns3.edu.cn ⚠️ Not in zone NS records | ||||||
| NS | ns2.cernet.net ⚠️ Not in zone NS records | ||||||
| NS | ns4.cernet.net ⚠️ Not in zone NS records | ||||||
| NS | ns5.cernet.net ⚠️ Not in zone NS records | ||||||
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSns1.service.edu.cn2026-07-20 → 2026-07-24 · 2 obs
● 2026-07-24 03:20:56
●NSns2.service.edu.cn2026-07-20 → 2026-07-24 · 2 obs
● 2026-07-24 03:20:56
●A42.247.40.1452026-07-20 → 2026-07-24 · 2 obs
● 2026-07-24 03:20:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| edu.cn | dns.edu.cn, ns2.cernet.net, ns4.cernet.net, ns5.cernet.net... | 6 records |
| oucc.edu.cn | ns2.service.edu.cn, ns1.service.edu.cn | 4 records |
✅ Authoritative Response
Server:202.112.5.49
NS records: ns2.service.edu.cn, ns1.service.edu.cn
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at edu.cn: Error: DNS query timeout: 203.119.25.1 for DS edu.cn
⏱️ Timing
Total: 4136ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 42.247.40.145 |
| NS | 2 | ns2.service.edu.cn, ns1.service.edu.cn |
| SOA | 1 | ns1.service.edu.cn sysadm.admin.cn |
📌 Glue Records Collected
Total: 10
In-bailiwick: 6 (dns.edu.cn, dns.edu.cn, dns2.edu.cn...)
Out-of-bailiwick: 4 (ns2.service.edu.cn, ns1.service.edu.cn, ns2.service.edu.cn...)
Analysis
IP Addresses
oucc.edu.cn points to a single IP number: 42.247.40.145.
Name Servers
DNS delegation for oucc.edu.cn points to two name servers: ns1.service.edu.cn and ns2.service.edu.cn.
oucc.edu.cn shares its name server setup with other domains, including zzafa.edu.cn, jzlg.edu.cn, sgap.edu.cn and two others.
oucc.edu.cn shares at least some of its name servers with other domains, including spvu.edu.cn, yit.edu.cn, gnnu.edu.cn and two others.
ns1.service.edu.cn directs to 202.112.5.49 and 2001:da8:257:2222::8888. ns2.service.edu.cn directs to 202.112.4.49 and 2001:da8:257:1111::8888. Each host name carries two IP addresses.