`hello-cs.szmasson.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:c405^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:151c^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.21.28^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.196.5^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.21.28, 172.67.196.5
		IPv6 hints	2606:4700:3034::ac43:c405, 2606:4700:3037::6815:151c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=133, name=cloudflare-ech.com

`szmasson.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`coraline.ns.cloudflare.com` ⭐
	NS	`tanner.ns.cloudflare.com`
	SOA	`coraline.ns.cloudflare.com`dns@cloudflare.com serial=2410654208

Similar names

shell-co.com

DNS History

6 records (4 active, 2 former)

●A104.21.21.282026-04-14 → 2026-07-28 · 2 obs

● 2026-04-14 22:51:28
● 2026-07-28 19:47:42

●A172.67.196.52026-04-14 → 2026-07-28 · 2 obs

● 2026-04-14 22:51:28
● 2026-07-28 19:47:42

○A2606:4700:3030::6815:151c2026-04-14 → 2026-05-25 · 4 obs

● 2026-04-14 22:51:28
● 2026-05-25 19:20:38
○ 2026-07-11 22:08:10
○ 2026-07-28 19:47:42

●A2606:4700:3034::ac43:c4052026-07-11 → 2026-07-28 · 3 obs

○ 2026-05-25 19:20:38
● 2026-07-11 22:08:10
● 2026-07-28 19:47:42

○A2606:4700:3036::ac43:c4052026-04-14 → 2026-05-25 · 4 obs

● 2026-04-14 22:51:28
● 2026-05-25 19:20:38
○ 2026-07-11 22:08:10
○ 2026-07-28 19:47:42

●A2606:4700:3037::6815:151c2026-07-11 → 2026-07-28 · 3 obs

○ 2026-05-25 19:20:38
● 2026-07-11 22:08:10
● 2026-07-28 19:47:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
workers.dev	clyde.ns.cloudflare.com, sofia.ns.cloudflare.com	-
szmasson.workers.dev	coraline.ns.cloudflare.com, tanner.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.97

NS records: coraline.ns.cloudflare.com, tanner.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 271ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.21.28, 172.67.196.5`
AAAA	2	`2606:4700:3034::ac43:c405, 2606:4700:3037::6815:151c`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

hello-cs.szmasson.workers.dev has four IP addresses: 104.21.21.28, 172.67.196.5, 2606:4700:3034::ac43:c405 and 2606:4700:3037::6815:151c.

Among the host names that share IP numbers with hello-cs.szmasson.workers.dev are ngu3-9904.xyz, taoxianba.com, domainrealtors.com and two others.

hello-cs.szmasson.workers.dev - robtex.com