s1.microsoft-update-server.workers.dev - robtex.com

s1.microsoft-update-server.workers.dev

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:bfb3🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:31b7🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.49.183Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.191.179🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.49.183, 172.67.191.179
IPv6 hints2606:4700:3030::ac43:bfb3, 2606:4700:3033::6815:31b7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=101, name=cloudflare-ech.com

microsoft-update-server.workers.dev

DNSSEC⚠️ Not signed
NSchristian.ns.cloudflare.com ⭐
NSharlee.ns.cloudflare.com
SOAchristian.ns.cloudflare.comdns@cloudflare.com serial=2402227812

Same first word

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s1.show
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s1.digital
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s1.com
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s1.dk
s1.gd
s1.ws
s1.hk
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s1.com.cn
s1.world
s1.org
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s1.cn
s1.io
s1.com.br
s1.is
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s1.net
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s1.katowice.pl
s1.de
s1.ro
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s1.com.ua
s1.by
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s1.business
s1.to
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s1.tv
s1.uni5.net
s1.fr
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s1.chat
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Similar names

1s.ms
1s.hu
1s.design
1s.co.za
1s.se
1s.kiev.ua
1s.my
1s.market
1s.de
1s.com.ua
1s.nl
1s.co
1s.cz
1s.sk
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1s.org
1s.fi
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1s.pl
1s.click
1s.ca
1s.kz
1s.be
1s.tc
1s.lv
1s.fr
1s.lt
1s.lc
1s.no
1s.plus
1s.cn
1s.su
1s.ru
1s.com
1s.gg
1s.ee
1s.ro
1s.fan
1s.tv

DNS History

4 records (4 active, 0 former)

A104.21.49.183172.67.191.1792606:4700:3030::ac43:bfb32606:4700:3033::6815:31b7
●A104.21.49.1832026-04-12 → 2026-05-09 · 2 obs
● 2026-04-12 18:10:32
● 2026-05-09 15:10:02
●A172.67.191.1792026-04-12 → 2026-05-09 · 2 obs
● 2026-04-12 18:10:32
● 2026-05-09 15:10:02
●A2606:4700:3030::ac43:bfb32026-04-12 → 2026-05-09 · 2 obs
● 2026-04-12 18:10:32
● 2026-05-09 15:10:02
●A2606:4700:3033::6815:31b72026-04-12 → 2026-05-09 · 2 obs
● 2026-04-12 18:10:32
● 2026-05-09 15:10:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...-
workers.devclyde.ns.cloudflare.com, sofia.ns.cloudflare.com-
microsoft-update-server.workers.devchristian.ns.cloudflare.com, harlee.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.238

NS records: christian.ns.cloudflare.com, harlee.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 574ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.49.183, 172.67.191.179
AAAA22606:4700:3030::ac43:bfb3, 2606:4700:3033::6815:31b7
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

Four IP numbers are pointed to by s1.microsoft-update-server.workers.dev: 2606:4700:3030::ac43:bfb3, 2606:4700:3033::6815:31b7, 104.21.49.183 and 172.67.191.179.

other host names including xn----zmca7cao4ecz.com, peterkoppelmann.de, www.zuiyh.cn, auto.z168.online and dynamoson.fi share IP numbers with s1.microsoft-update-server.workers.dev.