`pml-ea.slack.com`

DNSSEC	⚠️ Not signed
A	18.230.171.141^{🇧🇷 Amazon18.230.0.0/16 EC2 GRU prefix}
		PTR	`ec2-18-230-171-141.sa-east-1.compute.amazonaws.com`
A	54.94.183.148^{🇧🇷 Amazon54.94.128.0/18 EC2 GRU 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`

`slack.com`

	DNSSEC	⚠️ Not signed
	A	18.230.171.141^{🇧🇷 Amazon18.230.0.0/16 EC2 GRU prefix}
	A	54.94.183.148^{🇧🇷 Amazon54.94.128.0/18 EC2 GRU 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	`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 #427 globally
rank #273 in the tld
This domain, slack.com, is the official website for Slack, a business communication platform. Slack offers a variety of features such as direct messaging, group chats, and topic-specific channels to help teams communicate and collaborate more effectively. In addition to its communication features, it also allows integration with other services like Google Drive, Trello, and Dropbox.WOT: SAFE (93/100)
📈 Tranco rank: #314

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.

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DNS History

33 records (3 active, 30 former)

●MXinbound-smtp.us-east-1.amazonaws.com2018-10-13 → 2026-04-13 · 2 obs

● 2018-10-13 11:47:10
● 2026-04-13 12:45:26

○A13.32.167.1962018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A13.33.208.2452018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A13.35.21.1582018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A18.159.197.2252026-02-25 → 2026-03-17 · 6 obs

○ 2026-02-25 19:16:58
● 2026-02-25 21:13:14
○ 2026-03-17 02:23:24
● 2026-03-17 05:54:14
○ 2026-04-13 12:45:24
○ 2026-04-13 12:45:26

●A18.230.171.1412026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-17 05:54:14
● 2026-04-13 12:45:24
● 2026-04-13 12:45:26

○A3.210.88.62026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A3.68.124.1682026-02-25 → 2026-03-17 · 6 obs

○ 2026-02-25 19:16:58
● 2026-02-25 21:13:14
○ 2026-03-17 02:23:24
● 2026-03-17 05:54:14
○ 2026-04-13 12:45:24
○ 2026-04-13 12:45:26

○A3.68.124.952026-02-25 → 2026-03-17 · 6 obs

○ 2026-02-25 19:16:58
● 2026-02-25 21:13:14
○ 2026-03-17 02:23:24
● 2026-03-17 05:54:14
○ 2026-04-13 12:45:24
○ 2026-04-13 12:45:26

○A3.68.170.1532026-02-25 → 2026-03-17 · 6 obs

○ 2026-02-25 19:16:58
● 2026-02-25 21:13:14
○ 2026-03-17 02:23:24
● 2026-03-17 05:54:14
○ 2026-04-13 12:45:24
○ 2026-04-13 12:45:26

○A3.68.175.982026-02-25 → 2026-03-17 · 6 obs

○ 2026-02-25 19:16:58
● 2026-02-25 21:13:14
○ 2026-03-17 02:23:24
● 2026-03-17 05:54:14
○ 2026-04-13 12:45:24
○ 2026-04-13 12:45:26

○A3.95.117.962026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A34.193.255.52026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A34.196.46.2022026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A34.202.253.62026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A34.203.97.102026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A34.204.109.2262026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A34.205.195.662026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A34.225.62.1852026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A34.231.24.2242026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A52.29.238.2122026-02-25 → 2026-03-17 · 6 obs

○ 2026-02-25 19:16:58
● 2026-02-25 21:13:14
○ 2026-03-17 02:23:24
● 2026-03-17 05:54:14
○ 2026-04-13 12:45:24
○ 2026-04-13 12:45:26

○A52.73.140.592026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A52.84.170.1172018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A52.85.142.1512018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A52.85.71.2502018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A54.147.59.1692026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A54.163.235.1192026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A54.192.146.1452018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A54.225.153.2052026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

○A54.230.29.702018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A54.239.200.2542018-10-13 → 2018-10-13 · 3 obs

● 2018-10-13 11:47:10
○ 2026-02-20 11:40:28
○ 2026-04-13 12:45:26

○A54.92.199.1862026-02-20 → 2026-03-17 · 7 obs

○ 2018-10-13 11:47:10
● 2026-02-20 11:40:28
● 2026-02-25 19:16:58
○ 2026-02-25 21:13:14
● 2026-03-17 02:23:24
○ 2026-03-17 05:54:14
○ 2026-04-13 12:45:26

●A54.94.183.1482026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-17 05:54:14
● 2026-04-13 12:45:24
● 2026-04-13 12:45:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.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	1 record

✅ Authoritative Response

Server:205.251.197.213

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: 391ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`18.230.171.141, 54.94.183.148`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	1	`v=spf1 -all`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-166.awsdns-20.com)

Analysis

IP Addresses

pml-ea.slack.com points to two IP numbers: 18.230.171.141 and 54.94.183.148.

Other host names such as ee510-mlta.slack.com, functionalprogramming.irc.slack.com, horsa-cube.slack.com, imagine-x.slack.com and skytronworkspace.slack.com share IPs with pml-ea.slack.com.

Mail Servers

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

The mail server setup for pml-ea.slack.com matches that of other domains, for instance wildcard.composer.dealersmartsolutions.ca.dealer.com, solheimcupusa.com, huaweiedc.slack.com, smdigital.pe and luscofuscocyclery.slack.com.

pml-ea.slack.com shares at least partially some mail servers with other domains, including lakshyadigital.atlassian.net, chartertc.atlassian.net, cksw.co, graeme-mcgillivray-online.com and vizorsoftware.atlassian.net.

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

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

pml-ea.slack.com - robtex.com

pml-ea.slack.com

slack.com

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Mail Servers

`pml-ea.slack.com`

`slack.com`