`openai-proxy.czfeng-w.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:18ed^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:dd08^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.24.237^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.8^{🇺🇸 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	104.21.24.237, 172.67.221.8
		IPv6 hints	2606:4700:3031::6815:18ed, 2606:4700:3034::ac43:dd08
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=98, name=cloudflare-ech.com

`czfeng-w.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`alan.ns.cloudflare.com` ⭐
	NS	`martha.ns.cloudflare.com`
	SOA	`alan.ns.cloudflare.com`dns@cloudflare.com serial=2402769562

Same first word

openai-proxy.com

openai-proxy.azure-api.net

openai-proxy.org

DNS History

4 records (4 active, 0 former)

●A104.21.24.2372026-04-10 → 2026-05-12 · 2 obs

● 2026-04-10 17:38:52
● 2026-05-12 10:58:04

●A172.67.221.82026-04-10 → 2026-05-12 · 2 obs

● 2026-04-10 17:38:52
● 2026-05-12 10:58:04

●A2606:4700:3031::6815:18ed2026-04-10 → 2026-05-12 · 2 obs

● 2026-04-10 17:38:52
● 2026-05-12 10:58:04

●A2606:4700:3034::ac43:dd082026-04-10 → 2026-05-12 · 2 obs

● 2026-04-10 17:38:52
● 2026-05-12 10:58:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com...	-
workers.dev	clyde.ns.cloudflare.com, sofia.ns.cloudflare.com	-
czfeng-w.workers.dev	alan.ns.cloudflare.com, martha.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.142

NS records: alan.ns.cloudflare.com, martha.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 416ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.221.8, 104.21.24.237`
AAAA	2	`2606:4700:3031::6815:18ed, 2606:4700:3034::ac43:dd08`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

openai-proxy.czfeng-w.workers.dev resolves to four IPs: 2606:4700:3031::6815:18ed, 2606:4700:3034::ac43:dd08, 104.21.24.237 and 172.67.221.8.

Other host names, for instance sparkling-sound-d00e.z3xfa5xs.workers.dev, springfieldlakesdental.com.au, paksimga.site, karnatakacareers.in and www.artxl.net share IP numbers with openai-proxy.czfeng-w.workers.dev.

openai-proxy.czfeng-w.workers.dev - robtex.com