chd.cn - robtex.com
chd.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.117.66.253🇨🇳 ERX-CERNET-BKB202.117.64.0/20 CMI (Customer Route) | ||||||
| NS | ns.chd.cn ⭐ | ||||||
| NS | dns.chd.cn ⚠️ Not in zone NS records | ||||||
| A | 202.117.64.1🇨🇳 ERX-CERNET-BKB202.117.64.0/24 CMI (Customer Route) | ||||||
| NS | dns1.chd.cn ⚠️ Not in parent delegation | ||||||
| NS | dns2.chd.cn ⚠️ Not in zone NS records | ||||||
| NS | dns3.chd.cn ⚠️ Not in zone NS records | ||||||
| SOA | ns.chd.cnmail@chd.cn serial=11 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034546407 | ||||||
Subdomains
dns.chd.cn |
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSdns.chd.cn2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-14 14:20:12
● 2026-03-23 01:04:36
● 2026-03-23 01:04:36
●NSdns1.chd.cn2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-14 14:20:12
● 2026-03-23 01:04:36
● 2026-03-23 01:04:36
●NSdns2.chd.cn2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-14 14:20:12
● 2026-03-23 01:04:36
● 2026-03-23 01:04:36
●NSdns3.chd.cn2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-14 14:20:12
● 2026-03-23 01:04:36
● 2026-03-23 01:04:36
●NSns.chd.cn2026-03-14 → 2026-03-23 · 2 obs
● 2026-03-14 14:20:12
● 2026-03-23 01:04:36
● 2026-03-23 01:04:36
●A202.117.66.2532026-03-14 → 2026-03-23 · 2 obs
● 2026-03-14 14:20:12
● 2026-03-23 01:04:36
● 2026-03-23 01:04:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, e.dns.cn, b.dns.cn, d.dns.cn... | - |
| chd.cn | dns1.chd.cn, dns2.chd.cn, dns3.chd.cn | 3 records |
✅ Authoritative Response
Server:202.117.64.1
NS records: dns1.chd.cn, dns2.chd.cn, dns3.chd.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for chd.cn (unsigned zone)
⏱️ Timing
Total: 1230ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.117.66.253 |
| NS | 1 | dns.chd.cn |
| SOA | 1 | ns.chd.cn mail.chd.cn |
📌 Glue Records Collected
Total: 3
In-bailiwick: 3 (dns1.chd.cn, dns2.chd.cn, dns3.chd.cn)
Analysis
Hierarchy
chd.cn is the parent of dns.chd.cn.
IP Addresses
chd.cn resolves to one IP number: 202.117.66.253.
Other host names, for instance news.chd.edu.cn, xahu.edu.cn, www.chd.edu.cn and chd.edu.cn share IP numbers with chd.cn.
Name Servers
chd.cn is delegated to five name servers: dns1.chd.cn, dns2.chd.cn, dns3.chd.cn, dns.chd.cn and ns.chd.cn.
Hostnames with a single IP:
dns.chd.cn points to 202.117.64.1.