`openai.ljn.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:328a^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:cec7^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.50.138^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.206.199^{🇺🇸 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	104.21.50.138, 172.67.206.199
		IPv6 hints	2606:4700:3031::6815:328a, 2606:4700:3037::ac43:cec7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=206, name=cloudflare-ech.com

`ljn.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`elma.ns.cloudflare.com` ⭐
	NS	`theo.ns.cloudflare.com`
	SOA	`elma.ns.cloudflare.com`dns@cloudflare.com serial=2406718133

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DNS History

10 records (4 active, 6 former)

●A104.21.50.1382026-04-14 → 2026-07-13 · 5 obs

● 2026-04-14 02:29:20
● 2026-04-23 03:17:02
○ 2026-05-08 13:39:38
● 2026-05-25 06:43:50
● 2026-07-13 15:32:48

●A172.67.206.1992026-04-14 → 2026-07-13 · 5 obs

● 2026-04-14 02:29:20
● 2026-04-23 03:17:02
○ 2026-05-08 13:39:38
● 2026-05-25 06:43:50
● 2026-07-13 15:32:48

○A188.114.96.02026-05-08 → 2026-05-08 · 4 obs

○ 2026-04-23 03:17:02
● 2026-05-08 13:39:38
○ 2026-05-25 06:43:50
○ 2026-07-13 15:32:48

○A188.114.97.02026-05-08 → 2026-05-08 · 4 obs

○ 2026-04-23 03:17:02
● 2026-05-08 13:39:38
○ 2026-05-25 06:43:50
○ 2026-07-13 15:32:48

○A2606:4700:3030::6815:328a2026-04-14 → 2026-05-25 · 6 obs

● 2026-04-14 02:29:20
● 2026-04-23 03:17:02
○ 2026-05-08 13:39:38
● 2026-05-25 06:43:50
○ 2026-06-29 04:18:52
○ 2026-07-13 15:32:48

●A2606:4700:3031::6815:328a2026-06-29 → 2026-07-13 · 3 obs

○ 2026-05-25 06:43:50
● 2026-06-29 04:18:52
● 2026-07-13 15:32:48

○A2606:4700:3032::ac43:cec72026-04-14 → 2026-05-25 · 6 obs

● 2026-04-14 02:29:20
● 2026-04-23 03:17:02
○ 2026-05-08 13:39:38
● 2026-05-25 06:43:50
○ 2026-06-29 04:18:52
○ 2026-07-13 15:32:48

●A2606:4700:3037::ac43:cec72026-06-29 → 2026-07-13 · 3 obs

○ 2026-05-25 06:43:50
● 2026-06-29 04:18:52
● 2026-07-13 15:32:48

○A2a06:98c1:3120::2026-05-08 → 2026-05-08 · 4 obs

○ 2026-04-23 03:17:02
● 2026-05-08 13:39:38
○ 2026-05-25 06:43:50
○ 2026-07-13 15:32:48

○A2a06:98c1:3121::2026-05-08 → 2026-05-08 · 4 obs

○ 2026-04-23 03:17:02
● 2026-05-08 13:39:38
○ 2026-05-25 06:43:50
○ 2026-07-13 15:32:48

🔍 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	-
ljn.workers.dev	elma.ns.cloudflare.com, theo.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.154

NS records: elma.ns.cloudflare.com, theo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 1445ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.206.199, 104.21.50.138`
AAAA	2	`2606:4700:3031::6815:328a, 2606:4700:3037::ac43:cec7`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

openai.ljn.workers.dev has four IP addresses: 104.21.50.138, 172.67.206.199, 2606:4700:3031::6815:328a and 2606:4700:3037::ac43:cec7.

Among the host names that share IP numbers with openai.ljn.workers.dev are jimmyc.net, zlngfp8843.swimin7.com, arunika.ai and two others.

openai.ljn.workers.dev - robtex.com