ctx521.com - robtex.com
ctx521.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 67.229.82.34🇺🇸 VPLS67.229.82.0/24 | ||||||
| NS | a.dnspod.com ⭐ | ||||||
| A | 43.130.172.75🇸🇬 TENCENT-NET-AP-CN43.130.160.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| A | 43.134.249.74🇸🇬 TENCENT-NET-AP-CN43.134.224.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| A | 101.227.168.75🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC | ||||||
| A | 117.135.128.175🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route) | ||||||
| PTR | (root) | ||||||
| NS | b.dnspod.com | ||||||
| A | 43.161.3.75🇮🇳 TENCENT-NET-AP-CN43.161.0.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| A | 163.177.5.79🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24 | ||||||
| A | 220.196.136.75🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24 | ||||||
| NS | c.dnspod.com | ||||||
| A | 43.134.249.75🇸🇬 TENCENT-NET-AP-CN43.134.224.0/19 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| A | 112.80.181.175🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network | ||||||
| A | 125.94.59.175🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network | ||||||
| SOA | a.dnspod.comdomainadmin@dnspod.com serial=1679935059 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774369342 | ||||||
Same first word
ctx521.com |
DNS History
7 records (4 active, 3 former)
●NSa.dnspod.com2026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 16:34:52
●NSb.dnspod.com2026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 16:34:52
●NSc.dnspod.com2026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 16:34:52
○NSf1g1ns1.dnspod.net2018-09-12 → 2018-09-12 · 2 obs
○ 2026-03-24 16:34:52
○NSf1g1ns2.dnspod.net2018-09-12 → 2018-09-12 · 2 obs
○ 2026-03-24 16:34:52
○A59.153.150.2542018-09-12 → 2018-09-12 · 2 obs
○ 2026-03-24 16:34:52
●A67.229.82.342026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 16:34:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, i.gtld-servers.net... | - |
| ctx521.com | a.dnspod.com, b.dnspod.com, c.dnspod.com | 10 records |
✅ Authoritative Response
Server:163.177.5.79
NS records: a.dnspod.com, b.dnspod.com, c.dnspod.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctx521.com (unsigned zone)
⏱️ Timing
Total: 748ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 67.229.82.34 |
| NS | 3 | a.dnspod.com, b.dnspod.com... |
| SOA | 1 | a.dnspod.com domainadmin.dnspod.com |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (a.dnspod.com, a.dnspod.com, a.dnspod.com...)
Analysis
IP Addresses
ctx521.com points to a single IP address: 67.229.82.34.
Other host names such as 53ctx.com, 3885858.com, 88hc6.com, ctx8000.com and ctx879.com share IP numbers with ctx521.com.
Name Servers
ctx521.com is delegated to three name servers: a.dnspod.com, b.dnspod.com and c.dnspod.com.
At least part of the name servers for ctx521.com are shared with other domains, for instance bot01lg.cfd, ari6d.icu, zixuekaoshi.net, kra-37cc.cc and ichaecwr.com.
These name servers are commonly used alongside the name servers f1g1ns1.dnspod.net.
Host names with four IP numbers:
a.dnspod.com points to: 43.130.172.75, 43.134.249.74, 101.227.168.75 and 117.135.128.175.
Host names with three IP numbers:
b.dnspod.com points to: 43.161.3.75, 163.177.5.79 and 220.196.136.75.
c.dnspod.com points to: 43.134.249.75, 112.80.181.175 and 125.94.59.175.