🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`openai.bearcat.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:df0b^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:3b69^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.59.105^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.223.11^{🇺🇸 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	104.21.59.105, 172.67.223.11
		IPv6 hints	2606:4700:3034::ac43:df0b, 2606:4700:3036::6815:3b69
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=155, name=cloudflare-ech.com

`bearcat.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`ines.ns.cloudflare.com` ⭐
	NS	`peter.ns.cloudflare.com`
	SOA	`ines.ns.cloudflare.com`dns@cloudflare.com serial=2416922629

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Previous names

Next names

DNS History

4 records (4 active, 0 former)

●A104.21.59.1052026-06-27 → 2026-10-17 · 2 obs

● 2026-06-27 16:48:34
● 2026-10-17 07:28:12

●A172.67.223.112026-06-27 → 2026-10-17 · 2 obs

● 2026-06-27 16:48:34
● 2026-10-17 07:28:12

●A2606:4700:3034::ac43:df0b2026-06-27 → 2026-10-17 · 2 obs

● 2026-06-27 16:48:34
● 2026-10-17 07:28:12

●A2606:4700:3036::6815:3b692026-06-27 → 2026-10-17 · 2 obs

● 2026-06-27 16:48:34
● 2026-10-17 07:28:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
workers.dev	clyde.ns.cloudflare.com, sofia.ns.cloudflare.com	-
bearcat.workers.dev	ines.ns.cloudflare.com, peter.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.164

NS records: ines.ns.cloudflare.com, peter.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 413ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.223.11, 104.21.59.105`
AAAA	2	`2606:4700:3036::6815:3b69, 2606:4700:3034::ac43:df0b`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

openai.bearcat.workers.dev directs to four IP numbers, which are 104.21.59.105, 172.67.223.11, 2606:4700:3034::ac43:df0b and 2606:4700:3036::6815:3b69.

Two other host names, along with kpc2000.com, isotradeonlineshop.de and eudetriumpheminterlagos.com.br, also share IP numbers with openai.bearcat.workers.dev.

openai.bearcat.workers.dev - robtex.com