`openai.ckn.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:bbbc^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:4436^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.68.54^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.187.188^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.68.54, 172.67.187.188
		IPv6 hints	2606:4700:3030::ac43:bbbc, 2606:4700:3033::6815:4436
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=141, name=cloudflare-ech.com

`ckn.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`vivienne.ns.cloudflare.com` ⭐
	NS	`wesley.ns.cloudflare.com`
	SOA	`vivienne.ns.cloudflare.com`dns@cloudflare.com serial=2409076294

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DNS History

6 records (4 active, 2 former)

●A104.21.68.542026-06-28 → 2026-07-31 · 2 obs

● 2026-06-28 15:25:18
● 2026-07-31 01:37:08

●A172.67.187.1882026-06-28 → 2026-07-31 · 2 obs

● 2026-06-28 15:25:18
● 2026-07-31 01:37:08

●A2606:4700:3030::ac43:bbbc2026-07-26 → 2026-07-31 · 3 obs

○ 2026-06-28 15:25:18
● 2026-07-26 18:46:28
● 2026-07-31 01:37:08

●A2606:4700:3033::6815:44362026-07-26 → 2026-07-31 · 3 obs

○ 2026-06-28 15:25:18
● 2026-07-26 18:46:28
● 2026-07-31 01:37:08

○A2606:4700:3034::6815:44362026-06-28 → 2026-06-28 · 3 obs

● 2026-06-28 15:25:18
○ 2026-07-26 18:46:28
○ 2026-07-31 01:37:08

○A2606:4700:3034::ac43:bbbc2026-06-28 → 2026-06-28 · 3 obs

● 2026-06-28 15:25:18
○ 2026-07-26 18:46:28
○ 2026-07-31 01:37:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
workers.dev	sofia.ns.cloudflare.com, clyde.ns.cloudflare.com	-
ckn.workers.dev	vivienne.ns.cloudflare.com, wesley.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.246

NS records: vivienne.ns.cloudflare.com, wesley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 457ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.187.188, 104.21.68.54`
AAAA	2	`2606:4700:3030::ac43:bbbc, 2606:4700:3033::6815:4436`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

openai.ckn.workers.dev directs to four IP numbers, which are 104.21.68.54, 172.67.187.188, 2606:4700:3030::ac43:bbbc and 2606:4700:3033::6815:4436.

www.agch.kz, kopyko.com, tode69.com and two other host names share IP numbers with openai.ckn.workers.dev.

openai.ckn.workers.dev - robtex.com