🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`blue.kyvu6fa.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:30d6^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:897a^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.48.214^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.137.122^{🇺🇸 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	104.21.48.214, 172.67.137.122
		IPv6 hints	2606:4700:3034::6815:30d6, 2606:4700:3036::ac43:897a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=117, name=cloudflare-ech.com

`kyvu6fa.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`gerald.ns.cloudflare.com` ⭐
	NS	`ziggy.ns.cloudflare.com`
	SOA	`gerald.ns.cloudflare.com`dns@cloudflare.com serial=2416353332

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Previous names

Next names

DNS History

5 records (4 active, 1 former)

●A104.21.48.2142026-02-14 → 2026-10-17 · 2 obs

● 2026-02-14 20:14:44
● 2026-10-17 02:24:04

●A172.67.137.1222026-02-14 → 2026-10-17 · 2 obs

● 2026-02-14 20:14:44
● 2026-10-17 02:24:04

●A2606:4700:3034::6815:30d62026-06-30 → 2026-10-17 · 3 obs

○ 2026-06-11 16:05:42
● 2026-06-30 00:48:14
● 2026-10-17 02:24:04

●A2606:4700:3036::ac43:897a2026-02-14 → 2026-10-17 · 2 obs

● 2026-02-14 20:14:44
● 2026-10-17 02:24:04

○A2606:4700:3037::6815:30d62026-02-14 → 2026-06-11 · 4 obs

● 2026-02-14 20:14:44
● 2026-06-11 16:05:42
○ 2026-06-30 00:48:14
○ 2026-10-17 02:24:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld5.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...	-
workers.dev	sofia.ns.cloudflare.com, clyde.ns.cloudflare.com	-
kyvu6fa.workers.dev	gerald.ns.cloudflare.com, ziggy.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.168

NS records: gerald.ns.cloudflare.com, ziggy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 957ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.48.214, 172.67.137.122`
AAAA	2	`2606:4700:3036::ac43:897a, 2606:4700:3034::6815:30d6`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

blue.kyvu6fa.workers.dev resolves to four IP addresses: 104.21.48.214, 172.67.137.122, 2606:4700:3034::6815:30d6 and 2606:4700:3036::ac43:897a.

Among the host names that share IP numbers with blue.kyvu6fa.workers.dev are www.assyst.be, prosecure198.shop, crumpet.club and two others.

blue.kyvu6fa.workers.dev - robtex.com