`office.outlook3.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:d67b^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5624^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.86.36^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.214.123^{🇺🇸 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	104.21.86.36, 172.67.214.123
		IPv6 hints	2606:4700:3033::ac43:d67b, 2606:4700:3037::6815:5624
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com

`outlook3.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`brenda.ns.cloudflare.com` ⭐
	NS	`nero.ns.cloudflare.com`
	SOA	`brenda.ns.cloudflare.com`dns@cloudflare.com serial=2407369711

Same first word

office.legal

office.or.kr

office.se

office.bm

office.com.de

office.support

office.tel

office.cn

office.box

office.co.nz

office.radio

office.us

office.app

office.one

office.cz

office.nl

office.no

office.fr

office.security

office.business

office.is

office.com.kz

office.pro

office.net.nz

office.co.jp

office.id.vn

office.sk

office

office.im

office.youtube

office.ie

office.net.cn

office.com.pk

office.co

office.rs

office.sg

office.coffee

office.co.cr

office.kh.ua

office.mints.ne.jp

office.az

office.download

office.guru

office.bg

office.social

office.ruhr

office.ai

office.vodka

office.ne.jp

office.123hjemmeside.dk

office.world

office.pt

office.but.jp

office.at

office.co.uk

office.eco

office.sakura.ne.jp

office.hamburg

office.it

office.lviv.ua

office.supplies

office.net

office.bz

office.ltd

office.law

office.mobi

office.de

office.or.at

office.ly

office.pl

office.microsoft

office.furniture

office.do

office.uk

office.cricket

office.lv

office.cc

office.dev

office.org

office.bz.it

office.jp

office.com.au

office.us.org

office.mx

office.dk

office.ms

office.je

office.hi.cn

office.accountants

office.rentals

office.vg

office.com

office.beer

office.co.at

office.elementor.cloud

office.al

office.org.pl

office.i234.me

office.cloud

office.ci

office.es

office.blue

office.to

office.ceo

office.live

Similar names

cioffe.com

effico.com.mx

coiffe.fr

offiec.cn

coffie.hatenablog.com

ieffco.com

effico.mobi

effico.fr

office.cooking

coffei.com

office.com.ng

office.rw

iceoff.ru

effico.es

DNS History

6 records (4 active, 2 former)

●A104.21.86.362026-03-16 → 2026-07-12 · 2 obs

● 2026-03-16 17:12:48
● 2026-07-12 08:07:10

●A172.67.214.1232026-03-16 → 2026-07-12 · 2 obs

● 2026-03-16 17:12:48
● 2026-07-12 08:07:10

●A2606:4700:3033::ac43:d67b2026-07-01 → 2026-07-12 · 3 obs

○ 2026-03-16 17:12:48
● 2026-07-01 19:58:32
● 2026-07-12 08:07:10

○A2606:4700:3034::ac43:d67b2026-03-16 → 2026-03-16 · 3 obs

● 2026-03-16 17:12:48
○ 2026-07-01 19:58:32
○ 2026-07-12 08:07:10

○A2606:4700:3035::6815:56242026-03-16 → 2026-03-16 · 3 obs

● 2026-03-16 17:12:48
○ 2026-07-01 19:58:32
○ 2026-07-12 08:07:10

●A2606:4700:3037::6815:56242026-07-01 → 2026-07-12 · 3 obs

○ 2026-03-16 17:12:48
● 2026-07-01 19:58:32
● 2026-07-12 08:07:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
workers.dev	clyde.ns.cloudflare.com, sofia.ns.cloudflare.com	-
outlook3.workers.dev	brenda.ns.cloudflare.com, nero.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.28

NS records: brenda.ns.cloudflare.com, nero.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 850ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.86.36, 172.67.214.123`
AAAA	2	`2606:4700:3033::ac43:d67b, 2606:4700:3037::6815:5624`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

office.outlook3.workers.dev resolves to four IP addresses: 104.21.86.36, 172.67.214.123, 2606:4700:3033::ac43:d67b and 2606:4700:3037::6815:5624.

searchformecca.com, riltd.org, pulibetgirisi.site plus two other host names have IP numbers in common with office.outlook3.workers.dev.

office.outlook3.workers.dev - robtex.com