🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`claude.superfastworker.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:8a1c^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:512c^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.44^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.138.28^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.44, 172.67.138.28
		IPv6 hints	2606:4700:3034::ac43:8a1c, 2606:4700:3035::6815:512c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=73, name=cloudflare-ech.com

`superfastworker.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`keanu.ns.cloudflare.com` ⭐
	NS	`sydney.ns.cloudflare.com`
	SOA	`keanu.ns.cloudflare.com`dns@cloudflare.com serial=2417751722

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Previous names

Next names

DNS History

8 records (4 active, 4 former)

●A104.21.81.442026-08-15 → 2026-10-18 · 4 obs

● 2026-08-15 14:04:42
○ 2026-08-16 14:49:18
● 2026-08-25 19:29:04
● 2026-10-18 13:20:16

●A172.67.138.282026-08-15 → 2026-10-18 · 4 obs

● 2026-08-15 14:04:42
○ 2026-08-16 14:49:18
● 2026-08-25 19:29:04
● 2026-10-18 13:20:16

○A188.114.96.02026-08-16 → 2026-08-16 · 4 obs

○ 2026-08-15 14:04:42
● 2026-08-16 14:49:18
○ 2026-08-25 19:29:04
○ 2026-10-18 13:20:16

○A188.114.97.02026-08-16 → 2026-08-16 · 4 obs

○ 2026-08-15 14:04:42
● 2026-08-16 14:49:18
○ 2026-08-25 19:29:04
○ 2026-10-18 13:20:16

●A2606:4700:3034::ac43:8a1c2026-08-15 → 2026-10-18 · 4 obs

● 2026-08-15 14:04:42
○ 2026-08-16 14:49:18
● 2026-08-25 19:29:04
● 2026-10-18 13:20:16

●A2606:4700:3035::6815:512c2026-08-15 → 2026-10-18 · 4 obs

● 2026-08-15 14:04:42
○ 2026-08-16 14:49:18
● 2026-08-25 19:29:04
● 2026-10-18 13:20:16

○A2a06:98c1:3120::2026-08-16 → 2026-08-16 · 4 obs

○ 2026-08-15 14:04:42
● 2026-08-16 14:49:18
○ 2026-08-25 19:29:04
○ 2026-10-18 13:20:16

○A2a06:98c1:3121::2026-08-16 → 2026-08-16 · 4 obs

○ 2026-08-15 14:04:42
● 2026-08-16 14:49:18
○ 2026-08-25 19:29:04
○ 2026-10-18 13:20:16

🔍 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	-
superfastworker.workers.dev	keanu.ns.cloudflare.com, sydney.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.102

NS records: keanu.ns.cloudflare.com, sydney.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 1594ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.81.44, 172.67.138.28`
AAAA	2	`2606:4700:3035::6815:512c, 2606:4700:3034::ac43:8a1c`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

claude.superfastworker.workers.dev resolves to four IP addresses: 104.21.81.44, 172.67.138.28, 2606:4700:3034::ac43:8a1c and 2606:4700:3035::6815:512c.

museumtual.org, floralwave.info, 3477x.cc plus two other host names have IP numbers in common with claude.superfastworker.workers.dev.

claude.superfastworker.workers.dev - robtex.com