certca.cn - robtex.com
certca.cn
| CNAME | hggtm.certca.cn | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 220.189.208.140🇨🇳 CHINANET-BACKBONE220.184.0.0/13 China Telecom Network | ||||||
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=2035043443 | ||||||
Subdomains
hggtm.certca.cn |
Same first word
certca.cn |
Similar names
DNS History
3 records (3 active, 0 former)
●NSvip3.alidns.com2026-06-07 → 2026-07-15 · 2 obs
● 2026-06-07 08:34:50
● 2026-07-15 12:21:04
● 2026-07-15 12:21:04
●NSvip4.alidns.com2026-06-07 → 2026-07-15 · 2 obs
● 2026-06-07 08:34:50
● 2026-07-15 12:21:04
● 2026-07-15 12:21:04
●CNAMEhggtm.certca.cn2026-06-07 → 2026-07-15 · 2 obs
● 2026-06-07 08:34:50
● 2026-07-15 12:21:04
● 2026-07-15 12:21:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, b.dns.cn, a.dns.cn, e.dns.cn... | - |
| certca.cn | vip3.alidns.com, vip4.alidns.com | - |
✅ Authoritative Response
Server:170.33.80.11
NS records: vip3.alidns.com, vip4.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for certca.cn (unsigned zone)
⏱️ Timing
Total: 1234ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | vip4.alidns.com, vip3.alidns.com |
| CNAME | 1 | hggtm.certca.cn |
| SOA | 1 | vip3.alidns.com hostmaster.hichina.com |
Analysis
Hierarchy
hggtm.certca.cn is delegated beneath certca.cn.
IP Addresses
certca.cn points to a single IP number: 220.189.208.140.
Other hosts including zjca.com.cn, hggtm.certca.cn and www.zjca.com.cn share IP addresses with certca.cn.