`directlink.gbcache.ctdisk.com`

CNAME	`web.cdn.ctfile.com`
DNSSEC	⚠️ Not signed
A	54.248.138.103^{🇯🇵 Amazon54.248.128.0/17 EC2 NRT prefix}
		PTR	`ec2-54-248-138-103.ap-northeast-1.compute.amazonaws.com`
A	54.248.203.180^{🇯🇵 Amazon54.248.128.0/17 EC2 NRT prefix}

`gbcache.ctdisk.com`

	CNAME	`web.cdn.ctfile.com`
	DNSSEC	⚠️ Not signed
	A	54.248.138.103^{🇯🇵 Amazon54.248.128.0/17 EC2 NRT prefix}
	A	54.248.203.180^{🇯🇵 Amazon54.248.128.0/17 EC2 NRT prefix}

WOT: SAFE (65/100)
WOT: SAFE (77/100)

Same first word

Similar names

DNS History

4 records (1 active, 3 former)

○A139.162.13.912015-11-06 → 2015-11-06 · 3 obs

● 2015-11-06 01:45:26
○ 2015-12-30 13:26:18
○ 2026-05-01 15:30:38

○A139.162.6.2182015-11-06 → 2016-01-04 · 4 obs

● 2015-11-06 01:45:26
● 2016-01-04 20:55:38
○ 2016-07-16 19:57:26
○ 2026-05-01 15:30:38

○A47.90.18.532016-07-16 → 2016-11-28 · 5 obs

○ 2016-01-04 20:55:38
● 2016-07-16 19:57:26
● 2016-11-28 08:19:12
○ 2026-03-27 00:33:10
○ 2026-05-01 15:30:38

●CNAMEweb.cdn.ctfile.com2026-03-27 → 2026-05-01 · 2 obs

● 2026-03-27 00:33:10
● 2026-05-01 15:30:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ctdisk.com	dns3.hichina.com, dns4.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.44

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctdisk.com (unsigned zone)

⏱️ Timing

Total: 3519ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`web.cdn.ctfile.com`

📌 Glue Records Collected

Total: 18

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

Analysis

IP Addresses

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

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

directlink.gbcache.ctdisk.com - robtex.com