`ns.app.slack.com`

DNSSEC	⚠️ Not signed
A	3.95.117.96^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
		PTR	`ec2-3-95-117-96.compute-1.amazonaws.com`
A	3.210.88.6^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
A	34.193.255.5^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
A	34.196.46.202^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
A	34.202.253.6^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
A	34.203.97.10^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
A	34.204.109.226^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
A	34.205.195.66^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
A	34.225.62.185^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
A	34.231.24.224^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
A	52.73.140.59^{🇺🇸 Amazon52.72.0.0/15 EC2 IAD prefix}
A	54.92.199.186^{🇺🇸 Amazon54.92.128.0/17 EC2 IAD prefix}
A	54.147.59.169^{🇺🇸 Amazon54.144.0.0/14 EC2 IAD NAT prefix}
A	54.163.235.119^{🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix}
A	54.225.153.205^{🇺🇸 Amazon54.224.0.0/15 EC2 IAD prefix}
MX	`inbound-smtp.us-east-1.amazonaws.com` ⭐
		A	3.211.210.226^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-211-210-226.compute-1.amazonaws.com`
		A	44.206.9.87^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-206-9-87.compute-1.amazonaws.com`
		A	44.210.166.32^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-210-166-32.compute-1.amazonaws.com`
		A	54.164.173.191^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-173-191.compute-1.amazonaws.com`
		A	54.197.5.236^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-5-236.compute-1.amazonaws.com`
TXT	`v=spf1 -all`

Same first word

ns.cd

ns.ks.ua

ns.dn.ua

ns.cl

ns.chat

ns.eu.org

ns.cx

ns.or.at

ns.hn

ns.ac.lk

ns.my

ns.fyi

ns.fo

ns.ky

ns.tn

ns.lt

ns.net.id

ns.hepforge.org

ns.spb.ru

ns.net

ns.ax

ns.ci

ns.ms

ns.com.tw

ns.gg

ns.altervista.org

ns.nl

ns.radio.fm

ns.net.mv

ns.ai

ns.edu.pl

ns.k12.ut.us

ns.dyndns.org

ns.net.nz

ns.domains

ns.ras.ru

ns.co.at

ns.cz

ns.cn

ns.gov.ru

ns.hk

ns.s3.amazonaws.com

ns.com.co

ns.onl

ns.express

ns.hs.kr

ns.in.th

ns.uk

ns.works

ns.vc

ns.ae

ns.pl

ns.gov.lv

ns.ck.ua

ns.riik.ee

ns.tc

ns.hr

ns.org.cn

ns.fm

ns.art.pl

ns.keymachine.de

ns.parts

ns.az

ns.email

ns.boo

ns.com

ns.com.mv

ns.gov.mg

ns.eu

ns.sa

ns.army

ns.sh

ns.tk

ns.com.sg

ns.su

ns.services

ns.pro.br

ns.im

ns.fr

ns.mx

ns.mil.tw

ns.vg

ns.or.kr

ns.com.tr

ns.team

ns.cv.ua

ns.agency

ns.je

ns.km.ua

ns.productions

ns.mt

ns.iki.fi

ns.no

ns.tel

ns.ni

ns.potager.org

ns.farm

ns.edu.me

ns.net.pl

ns.net.kg

ns.ml

ns.to.gov.br

ns.lib.md.us

ns.gov.sg

ns.in.ua

ns.co.kr

ns.nikolaev.ua

ns.kz

ns.ie

ns.kg

ns.free

ns.te.ua

ns.sb

ns.ac.rs

ns.gov.gu

ns.do

ns.kinghost.net

ns.taxi

ns.ge

ns.gy

ns.mv

ns.gouv.sn

ns.gov.mv

ns.software

ns.wtf

ns.ws

ns.co.th

ns.sg

ns.cn.ua

ns.cf

ns.crimea.ua

ns.ch.eu.org

Similar names

ns.od.ua

sn.at

ns.dp.ua

ns.gob.cl

ns.si

ns.net.au

ns.gov.my

ns.gq

ns.synology.me

ns.myshopify.com

ns.gl

ns.gifts

ns.odessa.ua

ns.ly

ns.gov

ns.ee

ns.kh.ua

ns.net.my

ns.gu

ns.com.py

sn.to

ns.lviv.ua

sn.click

sn.pl

ns.nhs.uk

sn.am

ns.org

ns.rs

ns.cq.cn

ns.uz

sn.is

ns.org.tw

ns.de

ns.ba

sn.vc

ns.spb.su

sn.cn

ns.net.br

ns.mk

sn.kz

ns.cc

sn.co

ns.dk

ns.zp.ua

sn.dk

ns.co.nz

ns.biz

ns.tr

sn.ac.th

sn.ro

ns.ht

sn.ai

sn.com.ua

ns.gov.mn

ns.is

ns.be

ns.uy

ns.games

ns.ro

ns.ma

sn

ns.life

ns.ac.me

sn.pub

ns.org.hk

ns.msk.ru

sn.sg

sn.fyi

ns.gov.ee

ns.legal

ns.net.cn

ns.ao

ns.ru

sn.md

ns.company

ns.poivron.org

ns.to

ns.io

ns.gov.ua

ns.mk.ua

ns.org.mv

ns.la

ns.ru.net

ns.fi

ns.com.cn

ns.qa

ns.gold

sn.com.mx

ns.gov.me

ns.sumy.ua

sn.cl

sn.in.th

sn.sumy.ua

sn.net.ua

sn.lv

sn.hu

DNS History

31 records (16 active, 15 former)

●MXinbound-smtp.us-east-1.amazonaws.com2026-02-25 → 2026-04-24 · 2 obs

● 2026-02-25 20:59:32
● 2026-04-24 01:14:28

○A18.159.197.2252026-02-25 → 2026-04-23 · 8 obs

● 2026-02-25 20:59:32
○ 2026-04-03 16:36:10
○ 2026-04-05 04:55:42
● 2026-04-10 05:02:06
○ 2026-04-12 06:10:38
○ 2026-04-23 17:05:32
● 2026-04-23 20:55:18
○ 2026-04-24 01:14:28

○A18.216.36.1902026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

○A18.221.229.812026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

○A3.129.123.2352026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

○A3.130.95.1822026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

○A3.134.44.1342026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

○A3.142.111.402026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

○A3.143.19.652026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

○A3.143.53.12026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

●A3.210.88.62026-04-03 → 2026-04-24 · 10 obs

○ 2026-02-25 20:59:32
● 2026-04-03 16:36:10
● 2026-04-05 04:55:42
○ 2026-04-10 05:02:06
● 2026-04-12 06:10:38
● 2026-04-13 11:26:02
○ 2026-04-22 07:34:22
● 2026-04-23 17:05:32
○ 2026-04-23 20:55:18
● 2026-04-24 01:14:28

○A3.22.139.1762026-04-22 → 2026-04-22 · 4 obs

○ 2026-04-13 11:26:02
● 2026-04-22 07:34:22
○ 2026-04-23 17:05:32
○ 2026-04-24 01:14:28

○A3.68.124.1682026-02-25 → 2026-04-23 · 8 obs

● 2026-02-25 20:59:32
○ 2026-04-03 16:36:10
○ 2026-04-05 04:55:42
● 2026-04-10 05:02:06
○ 2026-04-12 06:10:38
○ 2026-04-23 17:05:32
● 2026-04-23 20:55:18
○ 2026-04-24 01:14:28

○A3.68.124.952026-02-25 → 2026-04-23 · 8 obs

● 2026-02-25 20:59:32
○ 2026-04-03 16:36:10
○ 2026-04-05 04:55:42
● 2026-04-10 05:02:06
○ 2026-04-12 06:10:38
○ 2026-04-23 17:05:32
● 2026-04-23 20:55:18
○ 2026-04-24 01:14:28

○A3.68.170.1532026-02-25 → 2026-04-23 · 8 obs

● 2026-02-25 20:59:32
○ 2026-04-03 16:36:10
○ 2026-04-05 04:55:42
● 2026-04-10 05:02:06
○ 2026-04-12 06:10:38
○ 2026-04-23 17:05:32
● 2026-04-23 20:55:18
○ 2026-04-24 01:14:28

○A3.68.175.982026-02-25 → 2026-04-23 · 8 obs

● 2026-02-25 20:59:32
○ 2026-04-03 16:36:10
○ 2026-04-05 04:55:42
● 2026-04-10 05:02:06
○ 2026-04-12 06:10:38
○ 2026-04-23 17:05:32
● 2026-04-23 20:55:18
○ 2026-04-24 01:14:28

●A3.95.117.962026-04-03 → 2026-04-24 · 10 obs

●A34.193.255.52026-04-03 → 2026-04-24 · 10 obs

●A34.196.46.2022026-04-03 → 2026-04-24 · 10 obs

●A34.202.253.62026-04-03 → 2026-04-24 · 10 obs

●A34.203.97.102026-04-03 → 2026-04-24 · 10 obs

●A34.204.109.2262026-04-03 → 2026-04-24 · 10 obs

●A34.205.195.662026-04-03 → 2026-04-24 · 10 obs

●A34.225.62.1852026-04-03 → 2026-04-24 · 10 obs

●A34.231.24.2242026-04-03 → 2026-04-24 · 10 obs

○A52.29.238.2122026-02-25 → 2026-04-23 · 8 obs

● 2026-02-25 20:59:32
○ 2026-04-03 16:36:10
○ 2026-04-05 04:55:42
● 2026-04-10 05:02:06
○ 2026-04-12 06:10:38
○ 2026-04-23 17:05:32
● 2026-04-23 20:55:18
○ 2026-04-24 01:14:28

●A52.73.140.592026-04-03 → 2026-04-24 · 10 obs

●A54.147.59.1692026-04-03 → 2026-04-24 · 10 obs

●A54.163.235.1192026-04-03 → 2026-04-24 · 10 obs

●A54.225.153.2052026-04-03 → 2026-04-24 · 10 obs

●A54.92.199.1862026-04-03 → 2026-04-24 · 10 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net...	-
slack.com	ns-166.awsdns-20.com, ns-606.awsdns-11.net, ns-1901.awsdns-45.co.uk, ns-1493.awsdns-58.org	2 records

✅ Authoritative Response

Server:205.251.192.166

NS records: ns-166.awsdns-20.com, ns-606.awsdns-11.net, ns-1901.awsdns-45.co.uk, ns-1493.awsdns-58.org

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 426ms | Queries: -

📄 Records

Type	Count	Sample Data
A	15	`52.73.140.59, 34.204.109.226...`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	1	`v=spf1 -all`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-166.awsdns-20.com, ns-166.awsdns-20.com)

Analysis

IP Addresses

ns.app.slack.com points to fifteen IP numbers: 3.95.117.96, 3.210.88.6, 34.193.255.5, 34.196.46.202, 34.202.253.6, 34.203.97.10, 34.204.109.226, 34.205.195.66, 34.225.62.185, 34.231.24.224, 52.73.140.59, 54.92.199.186, 54.147.59.169, 54.163.235.119 and 54.225.153.205.

other host names for instance stakekings.slack.com, ec2-3-210-88-6.compute-1.amazonaws.com, slack.com, nvhg.slack.com and compass-tech.slack.com share IP numbers with ns.app.slack.com.

Mail Servers

ns.app.slack.com is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.

ns.app.slack.com shares the same mail server setup as other domains, for instance milesnco.slack.com, lenderdoor.com, medscoutberlin.slack.com, ecc-subcontractors.com and er-contract.e-reverse.com.

ns.app.slack.com shares mail servers with other domains at least partially, including ic-gcc.com, park-solutions.atlassian.net, abierto.uy, mariapiacasa.com.br and spongecell.atlassian.net.

these mail servers are commonly used alongside inbound-smtp.us-west-2.amazonaws.com.

Host inbound-smtp.us-east-1.amazonaws.com resolves to five IPs: 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.

ns.app.slack.com - robtex.com

`ns.app.slack.com`

`app.slack.com`

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Mail Servers