ns4.ctdcdn.com - robtex.com

ns4.ctdcdn.com

DNSSEC⚠️ Not signed
A240e:f7:4d80:300::57🇨🇳 CHINANET-BACKBONE240e:f6::/31 China Telecom (Zhejiang) Limited
A203.80.139.82🇯🇵 CTGNet203.80.139.0/24 China Telecom Global networks

ctdcdn.com

DNSSEC⚠️ Not signed
NSns1.ctdcdn.com ⭐
NSns2.ctdcdn.com
NSns3.ctdcdn.com
NSns4.ctdcdn.com
SOAns1.ctdcdn.comweb@ctdcdn.com serial=118773350
📈 Tranco rank: #16,224

NS for

ctdcdn.com

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DNS History

2 records (2 active, 0 former)

A203.80.139.82240e:f7:4d80:300::57
●A203.80.139.822026-02-17 → 2026-04-13 · 2 obs
● 2026-02-17 11:46:18
● 2026-04-13 07:47:40
●A240e:f7:4d80:300::572026-02-17 → 2026-04-13 · 2 obs
● 2026-02-17 11:46:18
● 2026-04-13 07:47:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
ctdcdn.comns1.ctdcdn.com, ns2.ctdcdn.com, ns3.ctdcdn.com, ns4.ctdcdn.com8 records

✅ Authoritative Response

Server:203.80.139.82

NS records: ns1.ctdcdn.com, ns2.ctdcdn.com, ns3.ctdcdn.com, ns4.ctdcdn.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctdcdn.com (unsigned zone)

⏱️ Timing

Total: 3680ms | Queries: -

📄 Records

TypeCountSample Data
A1203.80.139.82
AAAA1240e:f7:4d80:300::57

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (ns1.ctdcdn.com, ns1.ctdcdn.com, ns2.ctdcdn.com...)

Analysis

Name Server Role

ns4.ctdcdn.com serves as the name server for ctdcdn.com.

ns1.ctdcdn.com, ns2.ctdcdn.com and ns3.ctdcdn.com commonly serve as nameservers together with ns4.ctdcdn.com.

IP Addresses

ns4.ctdcdn.com points to two IP numbers: 240e:f7:4d80:300::57 and 203.80.139.82.