`test.microsoft-office365.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:35ad^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:d7d2^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.53.173^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.215.210^{🇺🇸 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	104.21.53.173, 172.67.215.210
		IPv6 hints	2606:4700:3032::6815:35ad, 2606:4700:3035::ac43:d7d2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=170, name=cloudflare-ech.com

`microsoft-office365.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`eleanor.ns.cloudflare.com` ⭐
	NS	`kenneth.ns.cloudflare.com`
	SOA	`eleanor.ns.cloudflare.com`dns@cloudflare.com serial=2410203683

Same first word

test.casa

test.ly

test.center

test.duckdns.org

test.no

test.fr

test.ee

test.co.zw

test.de

test.pro

test.am

test.taxi

test.vn

test.jo

test.vc

test.cl

test.ie

test.dyndns.org

test.farm

test.auto.pl

test.ph

test.ac

test.chat

test.bz

test.my

test.lu

test.sn

test.lv

test.pl

test.services

test.com.br

test.kz

test.pro.vn

test.dn.ua

test.ba

test.info.vn

test.edu.vn

test.com.mx

test.net.ua

test.org.ua

test.academy

test.ai

test.gov.bn

test.name

test.hk

test.com.cy

test.gg

test.je

test.uzhgorod.ua

test.nu

test.fm

test.io

test.co.nz

test.systems

test.cloudapp.net

test.by

test.marketing

test.cx

test.cloudns.asia

test.wroc.pl

test.is

test.net.kg

test.ms

test.ath.cx

test.lt

test.cc

test.cv.ua

test.se

test.com.tr

test.al

test.to

test.tv

test.mk

test.msk.ru

test.cn

test.cba

test.tel

test.uk

test.firebaseapp.com

test.net.vn

test.guide

test.gov.bm

test.gov.pl

test.hu

test.tc

test.co.uk

test.im

test.githubusercontent.com

test.fi

test.synology.me

test.k12.ok.us

test.li

test.be

test.cd

test.info

test.kitchen

test.restaurant

test.ro

test.biz

test.pe.kr

test.gratis

test.asia

test.nz

test.net.au

test.world

test.eu

test.co.id

test.biz.ua

test.gu

test.hiv

test.com.my

test.at

test.sk

test.ac.vn

test.cz

test.us

Similar names

etts.ee

etst.ru

tets.ru

sett.cl

estt.ru

tset.org

stte.fr

stte.de

stet.us

tets.net

etst.org

sett.dk

sett.ca

stet.eu

estt.eu

tets.de

tset.net

ttse.com

etts.solutions

stte.ru

stet.edu.in

sett.net

tset.se

stte.ch

stet.cc

tste.cn

ttse.net

ttse.de

etts.us

sett.no

sett.gr

stet.com

test.net

test.pf

tset.de

test.hr

test.tm

etts.sh

etts.ae

test.ag

etst.co.uk

sett.com

test.s3.amazonaws.com

test.mw

test.sg

test.co.za

estt.de

sett.nl

test.canva-apps.cn

test.jp

stte.org

test.express

sett.tn

etst.info

stet.nl

test.github.io

test.gov.ru

DNS History

6 records (4 active, 2 former)

●A104.21.53.1732026-04-15 → 2026-07-25 · 2 obs

● 2026-04-15 14:00:32
● 2026-07-25 02:48:22

●A172.67.215.2102026-04-15 → 2026-07-25 · 2 obs

● 2026-04-15 14:00:32
● 2026-07-25 02:48:22

●A2606:4700:3032::6815:35ad2026-07-20 → 2026-07-25 · 3 obs

○ 2026-06-16 18:12:54
● 2026-07-20 18:27:44
● 2026-07-25 02:48:22

○A2606:4700:3033::ac43:d7d22026-04-15 → 2026-06-16 · 4 obs

● 2026-04-15 14:00:32
● 2026-06-16 18:12:54
○ 2026-07-20 18:27:44
○ 2026-07-25 02:48:22

○A2606:4700:3035::6815:35ad2026-04-15 → 2026-06-16 · 4 obs

● 2026-04-15 14:00:32
● 2026-06-16 18:12:54
○ 2026-07-20 18:27:44
○ 2026-07-25 02:48:22

●A2606:4700:3035::ac43:d7d22026-07-20 → 2026-07-25 · 3 obs

○ 2026-06-16 18:12:54
● 2026-07-20 18:27:44
● 2026-07-25 02:48:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
workers.dev	sofia.ns.cloudflare.com, clyde.ns.cloudflare.com	-
microsoft-office365.workers.dev	eleanor.ns.cloudflare.com, kenneth.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.205

NS records: eleanor.ns.cloudflare.com, kenneth.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 450ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.53.173, 172.67.215.210`
AAAA	2	`2606:4700:3035::ac43:d7d2, 2606:4700:3032::6815:35ad`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

test.microsoft-office365.workers.dev points to the four IP addresses 104.21.53.173, 172.67.215.210, 2606:4700:3032::6815:35ad and 2606:4700:3035::ac43:d7d2.

www.ecmw.com, team-sog.com, www.wetmonkeyrentals.com and two other host names share IP numbers with test.microsoft-office365.workers.dev.

test.microsoft-office365.workers.dev - robtex.com