`openai.flatengine.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:d152^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:4d98^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.77.152^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.209.82^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.77.152, 172.67.209.82
		IPv6 hints	2606:4700:3032::ac43:d152, 2606:4700:3035::6815:4d98
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=193, name=cloudflare-ech.com

`flatengine.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`kira.ns.cloudflare.com` ⭐
	NS	`owen.ns.cloudflare.com`
	SOA	`kira.ns.cloudflare.com`dns@cloudflare.com serial=2402230855

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DNS History

4 records (4 active, 0 former)

●A104.21.77.1522026-04-22 → 2026-05-12 · 2 obs

● 2026-04-22 03:47:32
● 2026-05-12 20:02:48

●A172.67.209.822026-04-22 → 2026-05-12 · 2 obs

● 2026-04-22 03:47:32
● 2026-05-12 20:02:48

●A2606:4700:3032::ac43:d1522026-04-22 → 2026-05-12 · 2 obs

● 2026-04-22 03:47:32
● 2026-05-12 20:02:48

●A2606:4700:3035::6815:4d982026-04-22 → 2026-05-12 · 2 obs

● 2026-04-22 03:47:32
● 2026-05-12 20:02:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
workers.dev	sofia.ns.cloudflare.com, clyde.ns.cloudflare.com	-
flatengine.workers.dev	kira.ns.cloudflare.com, owen.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.197

NS records: kira.ns.cloudflare.com, owen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 351ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.77.152, 172.67.209.82`
AAAA	2	`2606:4700:3035::6815:4d98, 2606:4700:3032::ac43:d152`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

openai.flatengine.workers.dev maps to four IP numbers: 2606:4700:3032::ac43:d152, 2606:4700:3035::6815:4d98, 104.21.77.152 and 172.67.209.82.

Other host names such as muzeumtomaszow.pl, rtp-y200m-live.monster, testodrom.krok.edu.ua, topbeachfronthotels.com and closcan.com share IPs with openai.flatengine.workers.dev.

openai.flatengine.workers.dev - robtex.com