tcpdn.cn - robtex.com
tcpdn.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 23.148.236.239AS3038123.148.236.0/24 JIMAMBA LLC | ||||||
| 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.onclouddns.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 | ||||||
| NS | ns2.onclouddns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1781882835 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⚠️ Not in zone NS records | ||||||
| NS | b.dns.cn ⚠️ Not in zone NS records | ||||||
| NS | c.dns.cn ⚠️ Not in zone NS records | ||||||
| NS | d.dns.cn ⚠️ Not in zone NS records | ||||||
| NS | e.dns.cn ⚠️ Not in zone NS records | ||||||
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.julydns.com2026-07-12 → 2026-07-25 · 2 obs
● 2026-07-25 02:35:48
●NSns1.onclouddns.com2026-07-12 → 2026-07-25 · 2 obs
● 2026-07-25 02:35:48
●NSns2.julydns.com2026-07-12 → 2026-07-25 · 2 obs
● 2026-07-25 02:35:48
●NSns2.onclouddns.com2026-07-12 → 2026-07-25 · 2 obs
● 2026-07-25 02:35:48
●A23.148.236.2392026-07-12 → 2026-07-25 · 2 obs
● 2026-07-25 02:35:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| tcpdn.cn | ns1.onclouddns.com, ns2.onclouddns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.onclouddns.com, ns2.onclouddns.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 3408ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 23.148.236.239 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
IP Addresses
tcpdn.cn directs to one IP number, which is 23.148.236.239.
Among the host names that share IP numbers with tcpdn.cn are umxdq.cn, rcfvzah.cn, jzjzzzz.cn and two others.
Name Servers
The domain tcpdn.cn is delegated to these four name servers: ns1.julydns.com, ns2.julydns.com, ns1.onclouddns.com and ns2.onclouddns.com.
tcpdn.cn partially shares its NS delegation with several other domains, including stlink.cn, xiexingwen.com, linqiqi.cn and two others.
These name servers are regularly seen alongside ns1.judns.com and ns2.judns.com as name servers.
Each of ns1.julydns.com, ns2.julydns.com, ns1.onclouddns.com and ns2.onclouddns.com has a single IP address — ns1.julydns.com and ns2.julydns.com direct to 162.159.48.223, and ns1.onclouddns.com and ns2.onclouddns.com direct to 162.159.27.251.
The host names ns1.julydns.com and ns2.julydns.com both resolve to 162.159.48.223 IP addresses.
The host names ns1.onclouddns.com and ns2.onclouddns.com both resolve to 162.159.27.251 IP addresses.