`stack.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:27bc^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9443^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.188^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.67^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elaine.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a98^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c098^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elaine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2098^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elaine.ns.cloudflare.com`
		A	108.162.192.152^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	172.64.32.152^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	173.245.58.152^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
NS	`guss.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bac^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guss.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ac^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`guss.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ac^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`guss.ns.cloudflare.com`
		A	108.162.193.172^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guss.ns.cloudflare.com`
		A	172.64.33.172^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guss.ns.cloudflare.com`
		A	173.245.59.172^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guss.ns.cloudflare.com`
MX	`stack-com-br.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c94a::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cp5p284cu01800.inbound.protection.outlook.com`
		A	2a01:111:f403:c94a::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cp4p284cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:c94a::2^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cp3p284cu00702.inbound.protection.outlook.com`
		A	2a01:111:f403:c94c::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-roap284cu02600.inbound.protection.outlook.com`
		A	52.101.198.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cp5p284cu01800.inbound.protection.outlook.com`
		A	52.101.198.1^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cp4p284cu00401.inbound.protection.outlook.com`
		A	52.101.198.38^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cp3p284cu00706.inbound.protection.outlook.com`
		A	52.101.200.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-roap284cu02600.inbound.protection.outlook.com`
TXT	`MS=ms30674091`
TXT	`v=spf1 include:21748317.spf51.hubspotemail.net include:spf.protection.outlook...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.39.188, 172.67.148.67
		IPv6 hints	2606:4700:3036::6815:27bc, 2606:4700:3037::ac43:9443
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=107, name=cloudflare-ech.com
SOA	`elaine.ns.cloudflare.com`dns@cloudflare.com serial=2411788820

`com.br`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.br` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.br` ⚠️ Not in parent delegation
	NS	`c.dns.br` ⚠️ Not in parent delegation
	NS	`d.dns.br` ⚠️ Not in parent delegation
	NS	`e.dns.br` ⚠️ Not in parent delegation
	NS	`f.dns.br` ⚠️ Not in parent delegation
	SOA	`a.dns.br`hostmaster@registro.br serial=2026223380

rank #545812 globally
rank #3818 in the tld
WOT: SAFE (69/100)

Same first word

stack.biz

stack.uk.net

stack.buzz

stack.agency

stack.ru

stack.ml

stack.horse

stack.zone

stack.blue

stack.my

stack.farm

stack.co.uk

stack.org

stack.gallery

stack.sa

stack.it

stack.or.jp

stack.fyi

stack.nl

stack.ws

stack.money

stack.com

stack.net.ng

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stack.world

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stack.systems

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stack.kim

stack.fo

stack.co.nz

stack.io

stack.aero

stack.codes

stack.build

stack.bet

stack.creditcard

stack.network

stack.ai

stack.je

stack.lu

stack.me.uk

stack.com.uy

stack.group

stack.(0x787878)

stack.run

stack.ly

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stack.media

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stack.ddnsfree.com

stack.gl

stack.gg

stack.cards

stack.tokyo

stack.info

stack.solutions

stack.works

stack.gold

stack.black

stack.shopping

stack.net.nz

stack.mx

stack.spb.su

stack.im

stack.storage

stack.foundation

stack.jp

stack.se

stack.com.au

stack.support

stack.care

stack.team

stack.ventures

stack.fi

stack.pro

stack.fitness

stack.de

stack.co

stack.cool

stack.fail

stack.la

stack.com.br

stack.plus

stack.pl

stack.ie

stack.gov.sg

stack.cz

stack.ee

stack.spb.ru

stack.be

stack.house

stack.su

stack.city

stack.how

stack.net

stack.com.mx

stack.fr

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ctask.org.py

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kacst.gov.sa

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akstc.net

skatc.nfshost.com

satck.com

catks.com

DNS History

20 records (7 active, 13 former)

●NSelaine.ns.cloudflare.com2026-03-02 → 2026-08-11 · 3 obs

○ 2018-12-31 11:25:04
● 2026-03-02 20:57:14
● 2026-08-11 15:53:34

●NSguss.ns.cloudflare.com2026-03-02 → 2026-08-11 · 3 obs

○ 2018-12-31 11:25:04
● 2026-03-02 20:57:14
● 2026-08-11 15:53:34

○NSns.terraempresas.com.br2015-07-15 → 2018-12-31 · 4 obs

● 2015-07-15 18:53:06
● 2018-12-31 11:25:04
○ 2026-03-02 20:57:14
○ 2026-08-11 15:53:34

○NSns2.terraempresas.com.br2015-07-15 → 2018-12-31 · 4 obs

● 2015-07-15 18:53:06
● 2018-12-31 11:25:04
○ 2026-03-02 20:57:14
○ 2026-08-11 15:53:34

○NSsrv5-poa.nutecnet.com.br2015-07-15 → 2018-12-31 · 4 obs

● 2015-07-15 18:53:06
● 2018-12-31 11:25:04
○ 2026-03-02 20:57:14
○ 2026-08-11 15:53:34

○MXmx.terraempresas.com.br2015-07-15 → 2018-12-31 · 4 obs

● 2015-07-15 18:53:06
● 2018-12-31 11:25:04
○ 2026-03-02 20:57:14
○ 2026-08-11 15:53:34

●MXstack-com-br.mail.protection.outlook.com2026-03-02 → 2026-08-11 · 3 obs

○ 2018-12-31 11:25:04
● 2026-03-02 20:57:14
● 2026-08-11 15:53:34

●A104.21.39.1882026-04-23 → 2026-08-11 · 9 obs

○ 2026-03-24 04:41:50
● 2026-04-23 19:27:30
● 2026-05-13 17:01:48
○ 2026-05-13 22:08:42
● 2026-05-20 09:47:08
○ 2026-07-22 21:17:52
● 2026-07-23 14:44:24
○ 2026-08-09 06:39:58
● 2026-08-11 15:53:34

●A172.67.148.672026-04-23 → 2026-08-11 · 9 obs

○A188.114.96.02026-05-13 → 2026-08-09 · 7 obs

○ 2026-05-13 17:01:48
● 2026-05-13 22:08:42
○ 2026-05-20 09:47:08
● 2026-07-22 21:17:52
○ 2026-07-23 14:44:24
● 2026-08-09 06:39:58
○ 2026-08-11 15:53:34

○A188.114.97.02026-05-13 → 2026-08-09 · 7 obs

○ 2026-05-13 17:01:48
● 2026-05-13 22:08:42
○ 2026-05-20 09:47:08
● 2026-07-22 21:17:52
○ 2026-07-23 14:44:24
● 2026-08-09 06:39:58
○ 2026-08-11 15:53:34

○A2606:4700:3031::ac43:94432026-04-23 → 2026-05-20 · 7 obs

○ 2026-03-24 04:41:50
● 2026-04-23 19:27:30
● 2026-05-13 17:01:48
○ 2026-05-13 22:08:42
● 2026-05-20 09:47:08
○ 2026-06-23 23:16:50
○ 2026-08-11 15:53:34

○A2606:4700:3034::6815:27bc2026-04-23 → 2026-05-20 · 7 obs

○ 2026-03-24 04:41:50
● 2026-04-23 19:27:30
● 2026-05-13 17:01:48
○ 2026-05-13 22:08:42
● 2026-05-20 09:47:08
○ 2026-06-23 23:16:50
○ 2026-08-11 15:53:34

●A2606:4700:3036::6815:27bc2026-06-23 → 2026-08-11 · 6 obs

○ 2026-05-20 09:47:08
● 2026-06-23 23:16:50
○ 2026-07-22 21:17:52
● 2026-07-23 14:44:24
○ 2026-08-09 06:39:58
● 2026-08-11 15:53:34

●A2606:4700:3037::ac43:94432026-06-23 → 2026-08-11 · 6 obs

○ 2026-05-20 09:47:08
● 2026-06-23 23:16:50
○ 2026-07-22 21:17:52
● 2026-07-23 14:44:24
○ 2026-08-09 06:39:58
● 2026-08-11 15:53:34

○A2a06:98c1:3120::2026-05-13 → 2026-08-09 · 7 obs

○ 2026-05-13 17:01:48
● 2026-05-13 22:08:42
○ 2026-05-20 09:47:08
● 2026-07-22 21:17:52
○ 2026-07-23 14:44:24
● 2026-08-09 06:39:58
○ 2026-08-11 15:53:34

○A2a06:98c1:3121::2026-05-13 → 2026-08-09 · 7 obs

○ 2026-05-13 17:01:48
● 2026-05-13 22:08:42
○ 2026-05-20 09:47:08
● 2026-07-22 21:17:52
○ 2026-07-23 14:44:24
● 2026-08-09 06:39:58
○ 2026-08-11 15:53:34

○A31.43.160.62026-03-02 → 2026-03-24 · 5 obs

○ 2018-12-31 11:25:04
● 2026-03-02 20:57:14
● 2026-03-24 04:41:50
○ 2026-04-23 19:27:30
○ 2026-08-11 15:53:34

○A31.43.161.62026-03-02 → 2026-03-24 · 5 obs

○ 2018-12-31 11:25:04
● 2026-03-02 20:57:14
● 2026-03-24 04:41:50
○ 2026-04-23 19:27:30
○ 2026-08-11 15:53:34

○A69.49.115.402015-07-15 → 2018-12-31 · 4 obs

● 2015-07-15 18:53:06
● 2018-12-31 11:25:04
○ 2026-03-02 20:57:14
○ 2026-08-11 15:53:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
stack.com.br	elaine.ns.cloudflare.com, guss.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.152

NS records: elaine.ns.cloudflare.com, guss.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1010ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.39.188, 172.67.148.67`
AAAA	2	`2606:4700:3037::ac43:9443, 2606:4700:3036::6815:27bc`
NS	2	`elaine.ns.cloudflare.com, guss.ns.cloudflare.com`
MX	1	`stack-com-br.mail.protection.outlook.com`
TXT	2	`MS=ms30674091, v=spf1 include:21748317.spf51.hubspotema`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elaine.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

stack.com.br points to the four IP addresses 104.21.39.188, 172.67.148.67, 2606:4700:3036::6815:27bc and 2606:4700:3037::ac43:9443.

vagageneral.ccoo.cat, jrbsurveyors.co.uk, fmb.dk plus two other host names have IP numbers in common with stack.com.br.

Name Servers

The NS records for stack.com.br delegate to elaine.ns.cloudflare.com and guss.ns.cloudflare.com.

The name server configuration of stack.com.br is shared with other domains, for instance planmyholidays.com, atlanticstreethouse.com, nicematrix.com and two others.

The name servers of stack.com.br overlap at least partially with those of other domains — among them impactacademies.com, abaque.ca, 7zylh.com and two more.

These name servers commonly co-occur with the name servers monroe.ns.cloudflare.com, mario.ns.cloudflare.com, emerie.ns.cloudflare.com and sam.ns.cloudflare.com.

Hosts with 6 IP addresses each:

elaine.ns.cloudflare.com maps to 108.162.192.152, 172.64.32.152, 173.245.58.152 and 3 additional IP addresses.

guss.ns.cloudflare.com maps to 108.162.193.172, 172.64.33.172, 173.245.59.172 and 3 additional IP addresses.