`mx.operativa.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:c0ed^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:1486^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.20.134^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.192.237^{🇺🇸 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	104.21.20.134, 172.67.192.237
		IPv6 hints	2606:4700:3033::ac43:c0ed, 2606:4700:3036::6815:1486
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=222, name=cloudflare-ech.com

`operativa.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:c0ed^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:1486^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.20.134^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.192.237^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kim.ns.cloudflare.com` ⭐
NS	`max.ns.cloudflare.com`
MX	`operativa-com-br.mail.protection.outlook.com` ⭐
TXT	`MS=ms21869744`
TXT	`google-site-verification=xwad6m2S3TMzWq_EH_a-y9nOAwLJDqkzCuFOswp5Su8`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.20.134, 172.67.192.237
		IPv6 hints	2606:4700:3033::ac43:c0ed, 2606:4700:3036::6815:1486
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=222, name=cloudflare-ech.com
SOA	`kim.ns.cloudflare.com`dns@cloudflare.com serial=2400412704

WOT: SAFE (62/100)

Same first word

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mx.lv

mx.abbott

mx.or.at

mx.cn

mx.servebbs.org

mx.microsoft

mx.ph

mx.myftp.biz

mx.com.tr

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mx.firewall-gateway.de

mx.mayfirst.org

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mx.ag

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mx.fi

mx.cz

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mx.net

mx.box

mx.homelinux.com

mx.dnsalias.com

mx.se

mx.srv.br

mx.si

mx.de

mx.org.ua

mx.nl

mx.com

mx.co.ua

mx.al

mx

mx.org

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mx.sb

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mx.nf

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mx.is

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mx.dev

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mx.cl

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mx.uy

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mx.io

mx.co.ke

mx.vg

mx.gp

mx.cloudaccess.net

mx.global.prod.fastly.net

mx.email

mx.com.pt

mx.ru

mx.services

mx.pl

mx.ht

mx.uk

mx.no

mx.cloud.nospamproxy.com

mx.agency

mx.rs

mx.vc

mx.cloudflare.net

mx.ws

mx.plus

mx.zone

mx.co.za

mx.tours

mx.s3.amazonaws.com

mx.com.tw

mx.vu

mx.biz

mx.network

mx.se.gov.br

mx.gy

mx.pe

mx.realm.cz

mx.tn

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mx.exchange

mx.kh.ua

mx.md

mx.to

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mx.graphics

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mx.support

mx.myftp.org

mx.duckdns.org

mx.kinghost.net

mx.gouv.ci

mx.money

mx.kasserver.com

mx.com.ar

mx.sytes.net

mx.center

mx.withyoutube.com

mx.mba

mx.co.uk

mx.s3-website-eu-west-1.amazonaws.com

mx.s3-website-us-east-1.amazonaws.com

mx.design

mx.s3-website-us-west-1.amazonaws.com

mx.msk.ru

mx.scrapping.cc

mx.tv

mx.casino

mx.ma

mx.dyndns.org

mx.sh

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xm.biz

xm.media

xm.fyi

xm.pe

xm.wtf

xm.nl

xm.app

xm.cn

xm.gov.cn

xm.city

xm.ca

xm.ee

xm.ae

xm.lc

xm.chat

xm.life

xm.net

xm.cm

xm.co

xm.co.za

xm.kiev.ua

xm.js.cn

xm.cc

xm.by

xm.world

xm.lt

xm.com.ua

xm.ru

xm.de

xm.cl

xm.sk

xm.se

xm.hu

xm.com.co

xm.africa

xm.fi

xm.is

xm.am

xm.money

xm.be

xm.cz

xm.hk.cn

xm.fj.cn

xm.pl

xm.vn.ua

xm.house

xm.mk

xm.com

DNS History

5 records (4 active, 1 former)

●A104.21.20.1342026-04-02 → 2026-05-11 · 3 obs

○ 2017-12-13 05:15:38
● 2026-04-02 19:11:12
● 2026-05-11 14:13:46

●A172.67.192.2372026-04-02 → 2026-05-11 · 3 obs

○ 2017-12-13 05:15:38
● 2026-04-02 19:11:12
● 2026-05-11 14:13:46

○A186.233.144.412014-11-03 → 2014-11-03 · 3 obs

● 2014-11-03 18:39:38
○ 2017-12-13 05:15:38
○ 2026-05-11 14:13:46

●A2606:4700:3033::ac43:c0ed2026-04-02 → 2026-05-11 · 3 obs

○ 2017-12-13 05:15:38
● 2026-04-02 19:11:12
● 2026-05-11 14:13:46

●A2606:4700:3036::6815:14862026-04-02 → 2026-05-11 · 3 obs

○ 2017-12-13 05:15:38
● 2026-04-02 19:11:12
● 2026-05-11 14:13:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	f.dns.br, c.dns.br, d.dns.br, a.dns.br...	-
operativa.com.br	kim.ns.cloudflare.com, max.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.126

NS records: kim.ns.cloudflare.com, max.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for operativa.com.br (unsigned zone)

⏱️ Timing

Total: 485ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.20.134, 172.67.192.237`
AAAA	2	`2606:4700:3033::ac43:c0ed, 2606:4700:3036::6815:1486`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

mx.operativa.com.br maps to four IP numbers: 2606:4700:3033::ac43:c0ed, 2606:4700:3036::6815:1486, 104.21.20.134 and 172.67.192.237.

other host names include pesnv.oneboxwood.com, idimasohi.org, starsepar.ru, tonkeul.com and 1s81b46ix.oneboxwood.com; they share IP numbers with mx.operativa.com.br.

mx.operativa.com.br - robtex.com