`openai.feng719.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:638^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:9af6^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.6.56^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.154.246^{🇺🇸 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	104.21.6.56, 172.67.154.246
		IPv6 hints	2606:4700:3034::6815:638, 2606:4700:3036::ac43:9af6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=166, name=cloudflare-ech.com

`feng719.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`cory.ns.cloudflare.com` ⭐
	NS	`kristin.ns.cloudflare.com`
	SOA	`cory.ns.cloudflare.com`dns@cloudflare.com serial=2410067048

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DNS History

6 records (4 active, 2 former)

●A104.21.6.562026-06-26 → 2026-07-26 · 2 obs

● 2026-06-26 15:04:58
● 2026-07-26 06:04:10

●A172.67.154.2462026-06-26 → 2026-07-26 · 2 obs

● 2026-06-26 15:04:58
● 2026-07-26 06:04:10

○A2606:4700:3030::ac43:9af62026-06-26 → 2026-06-26 · 2 obs

● 2026-06-26 15:04:58
○ 2026-07-26 06:04:10

○A2606:4700:3031::6815:6382026-06-26 → 2026-06-26 · 2 obs

● 2026-06-26 15:04:58
○ 2026-07-26 06:04:10

●A2606:4700:3034::6815:6382026-07-26 → 2026-07-26 · 2 obs

○ 2026-06-26 15:04:58
● 2026-07-26 06:04:10

●A2606:4700:3036::ac43:9af62026-07-26 → 2026-07-26 · 2 obs

○ 2026-06-26 15:04:58
● 2026-07-26 06:04:10

🔍 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	clyde.ns.cloudflare.com, sofia.ns.cloudflare.com	-
feng719.workers.dev	cory.ns.cloudflare.com, kristin.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.181

NS records: cory.ns.cloudflare.com, kristin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 540ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.154.246, 104.21.6.56`
AAAA	2	`2606:4700:3036::ac43:9af6, 2606:4700:3034::6815:638`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

openai.feng719.workers.dev points to the four IP addresses 104.21.6.56, 172.67.154.246, 2606:4700:3034::6815:638 and 2606:4700:3036::ac43:9af6.

www.cfardas.pt, s.stai-musaddadiyah.ac.id, creditservise.ru and two other host names share IP numbers with openai.feng719.workers.dev.

openai.feng719.workers.dev - robtex.com