cdn.ctdisk.com - robtex.com

cdn.ctdisk.com

CNAMEweb.cdn.ctfile.com
DNSSEC⚠️ Not signed
A54.248.138.103🇯🇵 Amazon54.248.128.0/17 EC2 NRT prefix
PTRec2-54-248-138-103.ap-northeast-1.compute.amazonaws.com
A54.248.203.180🇯🇵 Amazon54.248.128.0/17 EC2 NRT prefix

ctdisk.com

CNAMEweb.cdn.ctfile.com
DNSSEC⚠️ Not signed
A54.248.138.103🇯🇵 Amazon54.248.128.0/17 EC2 NRT prefix
A54.248.203.180🇯🇵 Amazon54.248.128.0/17 EC2 NRT prefix
WOT: SAFE (77/100)
rank #463915 globally
rank #202786 in the tld
WOT: SAFE (77/100)

Subdomains

web.cdn.ctdisk.com
hk.cdn.ctdisk.com

Same first word

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DNS History

13 records (1 active, 12 former)

20162017201820192020202120222023202420252026A103.207.68.149139.162.13.91139.162.6.218180.97.83.133203.88.164.214203.88.164.4747.90.18.5349.213.12.94CNAMEweb.cdn.ctfile.comhk.cdn.ctdisk.comhome.cdn.ctfile.comweb.blk.ctdisk.comweb.cdn.ctdisk.com
○A103.207.68.1492016-04-20 → 2016-04-20 · 4 obs
○ 2016-01-28 01:59:54
● 2016-04-20 22:27:46
○ 2016-06-23 05:34:38
○ 2026-04-28 00:14:50
○A139.162.13.912015-11-06 → 2015-11-17 · 5 obs
○ 2015-06-25 19:21:06
● 2015-11-06 07:30:16
● 2015-11-17 17:40:34
○ 2015-11-21 07:49:44
○ 2026-04-28 00:14:50
○A139.162.6.2182015-11-06 → 2015-11-17 · 5 obs
○ 2015-06-25 19:21:06
● 2015-11-06 07:30:16
● 2015-11-17 17:40:34
○ 2015-11-21 07:49:44
○ 2026-04-28 00:14:50
○A180.97.83.1332016-12-20 → 2016-12-20 · 4 obs
○ 2016-08-21 09:34:50
● 2016-12-20 14:03:30
○ 2026-04-28 00:14:48
○ 2026-04-28 00:14:50
○A203.88.164.2142015-06-25 → 2015-06-25 · 3 obs
● 2015-06-25 19:21:06
○ 2026-04-28 00:14:48
○ 2026-04-28 00:14:50
○A203.88.164.472015-06-25 → 2015-06-25 · 3 obs
● 2015-06-25 19:21:06
○ 2026-04-28 00:14:48
○ 2026-04-28 00:14:50
○A47.90.18.532016-06-23 → 2016-08-21 · 5 obs
○ 2016-04-20 22:27:46
● 2016-06-23 05:34:38
● 2016-08-21 09:34:50
○ 2016-12-20 14:03:30
○ 2026-04-28 00:14:50
○A49.213.12.942015-11-21 → 2016-01-28 · 5 obs
○ 2015-11-17 17:40:34
● 2015-11-21 07:49:44
● 2016-01-28 01:59:54
○ 2016-04-20 22:27:46
○ 2026-04-28 00:14:50
○CNAMEhk.cdn.ctdisk.com2015-11-06 → 2016-08-21 · 5 obs
○ 2015-06-25 19:21:06
● 2015-11-06 07:30:16
● 2016-08-21 09:34:50
○ 2016-12-20 14:03:30
○ 2026-04-28 00:14:50
○CNAMEhome.cdn.ctfile.com2016-12-20 → 2016-12-20 · 4 obs
○ 2016-08-21 09:34:50
● 2016-12-20 14:03:30
○ 2026-04-28 00:14:48
○ 2026-04-28 00:14:50
○CNAMEweb.blk.ctdisk.com2015-06-25 → 2015-11-17 · 4 obs
● 2015-06-25 19:21:06
● 2015-11-17 17:40:34
○ 2015-11-21 07:49:44
○ 2026-04-28 00:14:50
○CNAMEweb.cdn.ctdisk.com2015-11-21 → 2016-08-21 · 5 obs
○ 2015-11-17 17:40:34
● 2015-11-21 07:49:44
● 2016-08-21 09:34:50
○ 2016-12-20 14:03:30
○ 2026-04-28 00:14:50
●CNAMEweb.cdn.ctfile.com2026-04-28 → 2026-04-28 · 3 obs
○ 2016-12-20 14:03:30
● 2026-04-28 00:14:48
● 2026-04-28 00:14:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net...-
ctdisk.comdns3.hichina.com, dns4.hichina.com18 records

✅ Authoritative Response

Server:120.76.107.43

NS records: dns3.hichina.com, dns4.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctdisk.com (unsigned zone)

⏱️ Timing

Total: 487ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1web.cdn.ctfile.com

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns3.hichina.com, dns3.hichina.com, dns3.hichina.com...)

Analysis

Hierarchy

cdn.ctdisk.com is a parent of web.cdn.ctdisk.com and hk.cdn.ctdisk.com.

IP Addresses

cdn.ctdisk.com points to two IP numbers: 54.248.138.103 and 54.248.203.180.

Other host names such as directlink.gbcache.ctfile.net, hk2.cdn.web.ctfile.net, ec2-54-248-138-103.ap-northeast-1.compute.amazonaws.com, ec2-54-248-203-180.ap-northeast-1.compute.amazonaws.com and web.cdn.ctfile.com share IPs with cdn.ctdisk.com.