ptgdb.cn - robtex.com
ptgdb.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 43.240.144.121🇨🇳 harry-ASN43.240.144.0/22 Shenzhen Katherine Heng Technology Information Co., Ltd. Luohu District, Shenzhen City, Guangdong Province 3005 nanhu road International trade commercial building | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1774660002 | ||||||
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=2034704203 | ||||||
Subdomains
www.ptgdb.cn |
Same first word
ptgdb.cn |
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.julydns.com2026-04-12 → 2026-04-23 · 2 obs
● 2026-04-23 20:11:20
●NSns2.julydns.com2026-04-12 → 2026-04-23 · 2 obs
● 2026-04-23 20:11:20
●A43.240.144.1212026-04-12 → 2026-04-23 · 2 obs
● 2026-04-23 20:11:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, b.dns.cn, e.dns.cn, a.dns.cn... | - |
| ptgdb.cn | ns1.judns.com, ns2.judns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ptgdb.cn (unsigned zone)
⏱️ Timing
Total: 2118ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 43.240.144.121 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
Hierarchy
The parent of www.ptgdb.cn is ptgdb.cn.
IP Addresses
ptgdb.cn points to a single IP: 43.240.144.121.
Other host names, such as www.ptgdb.cn, share IP numbers with ptgdb.cn.
Name Servers
ptgdb.cn's delegation is handled by four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
ptgdb.cn partially shares name servers with other domains; examples include qzliantiao.com, dws-bearing.com, 859675.cn, chuangbar.com and happycamp.cc.
These name servers are often used with the name servers jm1.dns.com and jm2.dns.com.
Host names sharing a single IP address:
ns1.judns.com points to: 162.159.27.251.
ns2.judns.com points to: 162.159.27.251.
ns1.julydns.com points to: 162.159.48.223.
ns2.julydns.com points to: 162.159.48.223.
Host names pointing to 162.159.27.251: ns1.judns.com and ns2.judns.com.
Host names pointing to 162.159.48.223: ns1.julydns.com and ns2.julydns.com.