qdu.cn - robtex.com
qdu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.qdu.cn ⚠️ Not in zone NS records | ||||||
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=2035173406 | ||||||
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●NSdns1.qdu.cn2026-05-21 → 2026-08-13 · 2 obs
● 2026-05-21 06:30:18
● 2026-08-13 00:10:58
● 2026-08-13 00:10:58
🔍 DNS Trace
Analysis
Name Servers
DNS delegation for qdu.cn leads to one name server, dns1.qdu.cn.