`yahoo.serviceprovider.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:3e66^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:ded4^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.62.102^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.222.212^{🇺🇸 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	104.21.62.102, 172.67.222.212
		IPv6 hints	2606:4700:3035::6815:3e66, 2606:4700:3037::ac43:ded4
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=53, name=cloudflare-ech.com

`serviceprovider.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`cesar.ns.cloudflare.com` ⭐
	NS	`laylah.ns.cloudflare.com`
	SOA	`cesar.ns.cloudflare.com`dns@cloudflare.com serial=2410045810

Same first word

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DNS History

7 records (4 active, 3 former)

●A104.21.62.1022026-02-19 → 2026-07-31 · 2 obs

● 2026-02-19 06:55:28
● 2026-07-31 19:27:00

●A172.67.222.2122026-02-19 → 2026-07-31 · 2 obs

● 2026-02-19 06:55:28
● 2026-07-31 19:27:00

○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-28 → 2026-03-23 · 7 obs

○ 2026-02-28 06:33:28
● 2026-02-28 07:59:12
○ 2026-03-03 11:31:30
○ 2026-03-07 03:12:32
● 2026-03-23 03:44:02
○ 2026-03-23 12:35:32
○ 2026-07-31 19:27:00

○A2606:4700:3030::ac43:ded42026-02-19 → 2026-03-23 · 9 obs

● 2026-02-19 06:55:28
● 2026-02-28 06:33:28
○ 2026-02-28 07:59:12
● 2026-03-03 11:31:30
● 2026-03-07 03:12:32
○ 2026-03-23 03:44:02
● 2026-03-23 12:35:32
○ 2026-07-08 08:23:04
○ 2026-07-31 19:27:00

○A2606:4700:3033::6815:3e662026-02-19 → 2026-03-23 · 9 obs

●A2606:4700:3035::6815:3e662026-07-08 → 2026-07-31 · 3 obs

○ 2026-03-23 12:35:32
● 2026-07-08 08:23:04
● 2026-07-31 19:27:00

●A2606:4700:3037::ac43:ded42026-07-08 → 2026-07-31 · 3 obs

○ 2026-03-23 12:35:32
● 2026-07-08 08:23:04
● 2026-07-31 19:27:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...	-
workers.dev	clyde.ns.cloudflare.com, sofia.ns.cloudflare.com	-
serviceprovider.workers.dev	cesar.ns.cloudflare.com, laylah.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.119

NS records: cesar.ns.cloudflare.com, laylah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 654ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.62.102, 172.67.222.212`
AAAA	2	`2606:4700:3035::6815:3e66, 2606:4700:3037::ac43:ded4`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

yahoo.serviceprovider.workers.dev directs to four IP numbers, which are 104.21.62.102, 172.67.222.212, 2606:4700:3035::6815:3e66 and 2606:4700:3037::ac43:ded4.

Among the host names that share IP numbers with yahoo.serviceprovider.workers.dev are c74.me, westate.pl, bizpagedirectory.com and two others.

yahoo.serviceprovider.workers.dev - robtex.com