`cdn.amazon-us53.com`

DNSSEC	⚠️ Not signed
A	104.21.7.128^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.155.121^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.7.128, 172.67.155.121
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=164, name=cloudflare-ech.com

`amazon-us53.com`

DNSSEC	⚠️ Not signed
A	104.21.7.128^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.155.121^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`davina.ns.cloudflare.com` ⭐
NS	`ishaan.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.7.128, 172.67.155.121
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=164, name=cloudflare-ech.com
SOA	`davina.ns.cloudflare.com`dns@cloudflare.com serial=2402215158

⚠️ On DNS blocklist: tif
⚠️ On DNS blocklist: tif

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DNS History

2 records (2 active, 0 former)

●A104.21.7.1282026-03-23 → 2026-05-31 · 2 obs

● 2026-03-23 14:06:08
● 2026-05-31 07:22:24

●A172.67.155.1212026-03-23 → 2026-05-31 · 2 obs

● 2026-03-23 14:06:08
● 2026-05-31 07:22:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
amazon-us53.com	davina.ns.cloudflare.com, ishaan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.213

NS records: davina.ns.cloudflare.com, ishaan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for amazon-us53.com (unsigned zone)

⏱️ Timing

Total: 108ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.7.128, 172.67.155.121`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (davina.ns.cloudflare.com, davina.ns.cloudflare.com, davina.ns.cloudflare.com...)

Analysis

IP Addresses

cdn.amazon-us53.com points to two IP numbers: 104.21.7.128 and 172.67.155.121.

improvementsrepair.club, courtassistance.org, sky-mi.com plus two other host names have IP numbers in common with cdn.amazon-us53.com.

cdn.amazon-us53.com - robtex.com