`microsoft.update-software.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:252f^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:cbf4^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.37.47^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.203.244^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.37.47, 172.67.203.244
		IPv6 hints	2606:4700:3033::6815:252f, 2606:4700:3035::ac43:cbf4
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=96, name=cloudflare-ech.com

`update-software.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`brit.ns.cloudflare.com` ⭐
	NS	`elmo.ns.cloudflare.com`
	SOA	`brit.ns.cloudflare.com`dns@cloudflare.com serial=2405921946

Same first word

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DNS History

10 records (4 active, 6 former)

●A104.21.37.472026-04-04 → 2026-06-25 · 4 obs

● 2026-04-04 06:58:32
○ 2026-04-10 07:41:08
● 2026-04-23 12:21:02
● 2026-06-25 06:12:32

●A172.67.203.2442026-04-04 → 2026-06-25 · 4 obs

● 2026-04-04 06:58:32
○ 2026-04-10 07:41:08
● 2026-04-23 12:21:02
● 2026-06-25 06:12:32

○A188.114.96.02026-04-10 → 2026-04-10 · 4 obs

○ 2026-04-04 06:58:32
● 2026-04-10 07:41:08
○ 2026-04-23 12:21:02
○ 2026-06-25 06:12:32

○A188.114.97.02026-04-10 → 2026-04-10 · 4 obs

○ 2026-04-04 06:58:32
● 2026-04-10 07:41:08
○ 2026-04-23 12:21:02
○ 2026-06-25 06:12:32

○A2606:4700:3030::ac43:cbf42026-04-04 → 2026-06-10 · 5 obs

● 2026-04-04 06:58:32
○ 2026-04-10 07:41:08
● 2026-04-23 12:21:02
● 2026-06-10 15:13:18
○ 2026-06-25 06:12:32

○A2606:4700:3031::6815:252f2026-04-04 → 2026-06-10 · 5 obs

● 2026-04-04 06:58:32
○ 2026-04-10 07:41:08
● 2026-04-23 12:21:02
● 2026-06-10 15:13:18
○ 2026-06-25 06:12:32

●A2606:4700:3033::6815:252f2026-06-25 → 2026-06-25 · 2 obs

○ 2026-06-10 15:13:18
● 2026-06-25 06:12:32

●A2606:4700:3035::ac43:cbf42026-06-25 → 2026-06-25 · 2 obs

○ 2026-06-10 15:13:18
● 2026-06-25 06:12:32

○A2a06:98c1:3120::2026-04-10 → 2026-04-10 · 4 obs

○ 2026-04-04 06:58:32
● 2026-04-10 07:41:08
○ 2026-04-23 12:21:02
○ 2026-06-25 06:12:32

○A2a06:98c1:3121::2026-04-10 → 2026-04-10 · 4 obs

○ 2026-04-04 06:58:32
● 2026-04-10 07:41:08
○ 2026-04-23 12:21:02
○ 2026-06-25 06:12:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
workers.dev	sofia.ns.cloudflare.com, clyde.ns.cloudflare.com	-
update-software.workers.dev	brit.ns.cloudflare.com, elmo.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.163

NS records: brit.ns.cloudflare.com, elmo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 480ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.203.244, 104.21.37.47`
AAAA	2	`2606:4700:3035::ac43:cbf4, 2606:4700:3033::6815:252f`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...)

Analysis

IP Addresses

microsoft.update-software.workers.dev directs to four IP numbers, which are 104.21.37.47, 172.67.203.244, 2606:4700:3033::6815:252f and 2606:4700:3035::ac43:cbf4.

Among the host names that share IP numbers with microsoft.update-software.workers.dev are www.changpuek101.go.th, mx1.oes-elettromeccanica.it, www.edusafar.in and two others.

microsoft.update-software.workers.dev - dns.ninja