dev.slack.com - dns.ninja

`dev.slack.com`

DNSSEC	⚠️ Not signed
A	3.217.81.76^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
		PTR	`ec2-3-217-81-76.compute-1.amazonaws.com`
A	50.16.84.201^{🇺🇸 Amazon50.16.0.0/16 EC2 IAD prefix}
A	54.204.100.241^{🇺🇸 Amazon54.204.0.0/15 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	`google-site-verification=u1SqTDXzeM4fMNOVnGYbYLYoxrXqTsAFIb7iLX9lMAw`
TXT	`v=spf1 include:amazonses.com ~all`

`slack.com`

	DNSSEC	🔒 Signed (DS record present)
	A	35.81.85.251^{🇺🇸 Amazon35.80.0.0/12 EC2 PDX prefix}
	A	35.82.91.193^{🇺🇸 Amazon35.80.0.0/12 EC2 PDX prefix}
	A	44.234.235.93^{🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix}
	A	44.237.180.172^{🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix}
	A	52.89.90.67^{🇺🇸 Amazon52.88.0.0/15 EC2 PDX Prefix}
	A	54.70.179.16^{🇺🇸 Amazon54.70.0.0/15 EC2 PDX Prefix}
	A	54.71.95.193^{🇺🇸 Amazon54.70.0.0/15 EC2 PDX Prefix}
	A	54.188.33.22^{🇺🇸 Amazon54.188.0.0/15 EC2 PDX prefix}
	A	54.245.50.245^{🇺🇸 Amazon54.245.0.0/17 EC2 PDX prefix}
	NS	`ns-1493.awsdns-58.org` ⭐
	NS	`ns-166.awsdns-20.com`
	NS	`ns-1901.awsdns-45.co.uk`
	NS	`ns-606.awsdns-11.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`aspmx2.googlemail.com`⁽¹⁰⁾
	MX	`aspmx3.googlemail.com`⁽¹⁰⁾
	TXT	`00DT0000000Dpvc=1TBEE00000003Qx`
	TXT	`OSSRH-54733`
	TXT	`_0vidyxobp6x350odqhb4fo7fdxhmtq3`
	TXT	`google-site-verification=2PK67oVPNyEtS1avSlr3PhH5nSiFuticbQv_bT4pM2k`
	TXT	`google-site-verification=KqX3Ngw0XEjz_0GVx_xwFFlCoO-bskhqU_lxv0Q77mk`
	TXT	`google-site-verification=QvelFPjIOe3Vavw0q-aAVYaAPKmWCRjmmVVEAjgfjQc`
	TXT	`google-site-verification=efuXt5-oMr2CdNmVi6A9IO29KMKifpseD1qokxjWwcE`
	TXT	`google-site-verification=kB1KvgpSk9YkHsFmsj1VPI5YmDvfKctPxnplhGjyqtE`
	TXT	`google-site-verification=o2grd1TLmZZ8GrqbhVIFtzO2MRLTtSUpBBIBYfhQVCQ`
	TXT	`google-site-verification=v-LLB__IhraaI7ZzuE3jvRFIm2vERPLzWoepAEZJtKQ`
	TXT	`hubspot-developer-verification=OTE4NzYxYTgtMDUwZi00MzgzLTk2YTUtZDAwNjBlODg1MWM0`
	TXT	`spycloud-domain-verification=02e4c0be-cf43-44e4-beaf-4f99702ca632`
	TXT	`v=spf1 include:_spf.qualtrics.com include:mail.zendesk.com include:_spfextra....`
	SOA	`ns-1493.awsdns-58.org`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (93/100)
rank #421 globally
rank #263 in the tld

slack.com

Slack.com is the main website for Slack, a cloud‑based team messaging and collaboration platform operated by Slack Technologies, now part of Salesforce.

Key facts

Owner / operator: Slack Technologies (a subsidiary of Salesforce)
TLD:.com— gTLD
Primary purpose: team collaboration and messaging platform
Status: active

History

Year	Event
2013	Public beta of Slack launched
2020	Salesforce announced acquisition of Slack
2021	Acquisition completed; Slack became part of Salesforce

Semrush Rank:#1,593 Keywords:239,092 Traffic:1,677,936/mo
WOT: SAFE (93/100)
📈 Tranco rank: #345

Slack is a business communication platform founded in 2013 and acquired by Salesforce in 2021 for $27.7 billion. With over 18 million daily active users, Slack has become essential collaboration infrastructure for businesses, replacing email for many internal communications.

Slack offers real-time messaging, channels for organized discussions, file sharing, integrations with thousands of apps, and Slack Huddles for quick audio conversations. The platform pioneered many features now standard in business chat tools.

Slack's infrastructure handles millions of concurrent connections with strict real-time requirements. The platform processes billions of messages daily, with significant infrastructure for search and file storage.

DNS for slack.com uses Amazon Route 53 with global distribution. The platform's enterprise customers require high availability and security.

Subdomains

files.dev.slack.com

supra.dev.slack.com

b.dev.slack.com

sunshine-proxy-test.dev.slack.com

platform-tls-client.dev.slack.com

join.dev.slack.com

Same first word

dev.io

dev.mobile

dev.java

dev.ee

dev.stream

dev.co.th

dev.kiev.ua

dev.inc

dev.com.hr

dev.ph

dev.nc

dev.limo

dev.cv

dev.com.ar

dev.sk

dev.tg

dev.uy

dev.pl

dev.so

dev.tel

dev.do

dev.net.ru

dev.partners

dev.group

dev.moi

dev.eu

dev.br

dev.edgekey.net

dev.institute

dev.deals

dev.now

dev.fr

dev.microsoft

dev.az

dev.la

dev.ua

dev.je

dev.pet

dev.me

dev.com.tr

dev.link

dev.store

dev.ke

dev.design

dev.works

dev.tube

dev.wtf

dev.net.br

dev.blog

dev.com.vn

dev.org.il

dev.ge

dev.studio

dev.co.rs

dev.se

dev.canva-apps.cn

dev.email

dev.de

dev.delivery

dev.im

dev.com.mx

dev.tatar

dev.careers

dev

dev.am

dev.global

dev.wf

dev.es

dev.st

dev.sap

dev.id

dev.fi

dev.ir

dev.video

dev.capital

dev.net.cn

dev.pt

dev.tv

dev.dating

dev.net.in

dev.ai

dev.my

dev.jp

dev.idv.tw

dev.media

dev.fun

dev.dog

dev.tm

dev.sarl

dev.life

dev.com.co

dev.si

dev.s3-eu-west-1.amazonaws.com

dev.services

dev.digital

dev.bet

dev.co.uk

dev.moe

dev.cm

dev.ma

Similar names

dev.amsterdam

dev.vg

dev.fo

dev.cl

evd.be

edv.wtf

ved.world

evd.fr

ved.center

dev.zone

edv.cc

evd.mx

ved.com.vn

vde.name

evd.digital

vde.be

ved.us

edv.jobs

dve.fr

dve.org

vde.me

evd.cl

edv.care

evd.at

edv.life

ved.fi

vde.ch

ved.me

evd.com

dve.it

edv.de

vde.pl

dve.nl

edv.sh

dve.hu

evd.workers.dev

evd.nl

dve.ro

vde.mx

evd.nu

vde.eu

edv.com.mx

DNS History

9 records (4 active, 5 former)

●MXinbound-smtp.us-east-1.amazonaws.com2026-03-13 → 2026-07-25 · 3 obs

○ 2017-03-23 02:10:58
● 2026-03-13 09:54:36
● 2026-07-25 13:43:16

○MXmxa.mailgun.org2017-03-23 → 2017-03-23 · 3 obs

● 2017-03-23 02:10:58
○ 2026-03-13 09:54:36
○ 2026-07-25 13:43:16

○MXmxb.mailgun.org2017-03-23 → 2017-03-23 · 3 obs

● 2017-03-23 02:10:58
○ 2026-03-13 09:54:36
○ 2026-07-25 13:43:16

●A3.217.81.762026-03-13 → 2026-07-25 · 9 obs

○ 2017-03-23 02:10:58
● 2026-03-13 09:54:36
○ 2026-03-14 07:15:44
○ 2026-03-18 08:01:44
● 2026-03-19 08:17:22
○ 2026-03-22 14:59:18
○ 2026-03-27 02:35:52
● 2026-04-11 00:51:10
● 2026-07-25 13:43:16

●A50.16.84.2012026-03-13 → 2026-07-25 · 9 obs

○A52.33.62.1832026-03-14 → 2026-03-23 · 8 obs

○ 2026-03-13 09:54:36
● 2026-03-14 07:15:44
● 2026-03-18 08:01:44
○ 2026-03-19 08:17:22
● 2026-03-22 14:59:18
● 2026-03-23 08:13:30
○ 2026-03-27 02:35:52
○ 2026-07-25 13:43:16

○A52.84.91.1372017-03-23 → 2017-03-23 · 3 obs

● 2017-03-23 02:10:58
○ 2026-03-13 09:54:36
○ 2026-07-25 13:43:16

●A54.204.100.2412026-03-13 → 2026-07-25 · 9 obs

○A63.32.190.952026-03-27 → 2026-03-27 · 4 obs

○ 2026-03-23 08:13:30
● 2026-03-27 02:35:52
○ 2026-04-11 00:51:10
○ 2026-07-25 13:43:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net, a.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: 647ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`54.204.100.241, 50.16.84.201...`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	2	`google-site-verification=u1SqTDXzeM4fMNO, v=spf1 include:amazonses.com ~all`

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

Among the subdomains of dev.slack.com are files.dev.slack.com, supra.dev.slack.com, b.dev.slack.com, sunshine-proxy-test.dev.slack.com, platform-tls-client.dev.slack.com and a few other host names.

IP Addresses

dev.slack.com directs to three IP numbers: 3.217.81.76, 50.16.84.201 and 54.204.100.241.

Among the host names that share IP numbers with dev.slack.com are slack-files-dev.com, qa.slack.com, slack-dev.com and two others.

Mail Servers

dev.slack.com routes its mail through a single mail server, inbound-smtp.us-east-1.amazonaws.com.

dev.slack.com has the same mail server arrangement as a number of other domains, for example ibm-watson-iot.slack.com, leedelitogo.com, advise-conning.com and two more.

dev.slack.com shares at least some of its mail servers with other domains — for example p445m.info, hmgroup.atlassian.net, ohenz.com and two more.

These mail servers are routinely seen in conjunction with the mail servers inbound-smtp.us-west-2.amazonaws.com and aspmx.l.google.com.

inbound-smtp.us-east-1.amazonaws.com directs to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32 and two others.