`yahoo.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`

`slack.com`

	DNSSEC	🔒 Signed (DS record present)
	A	18.134.215.41^{🇬🇧 Amazon18.132.0.0/14 EC2 LHR prefix}
	A	18.168.172.238^{🇬🇧 Amazon18.168.0.0/14 EC2 LHR prefix}
	A	18.169.61.189^{🇬🇧 Amazon18.168.0.0/14 EC2 LHR prefix}
	A	18.169.120.191^{🇬🇧 Amazon18.168.0.0/14 EC2 LHR 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 #424 globally
rank #270 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: #315

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

22 records (16 active, 6 former)

●MXinbound-smtp.us-east-1.amazonaws.com2026-03-14 → 2026-03-25 · 2 obs

● 2026-03-14 16:38:16
● 2026-03-25 00:51:48

○A18.159.197.2252026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 16:38:16
○ 2026-03-22 05:25:46
○ 2026-03-25 00:51:48

●A3.210.88.62026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

○A3.68.124.1682026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 16:38:16
○ 2026-03-22 05:25:46
○ 2026-03-25 00:51:48

○A3.68.124.952026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 16:38:16
○ 2026-03-22 05:25:46
○ 2026-03-25 00:51:48

○A3.68.170.1532026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 16:38:16
○ 2026-03-22 05:25:46
○ 2026-03-25 00:51:48

○A3.68.175.982026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 16:38:16
○ 2026-03-22 05:25:46
○ 2026-03-25 00:51:48

●A3.95.117.962026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A34.193.255.52026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A34.196.46.2022026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A34.202.253.62026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A34.203.97.102026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A34.204.109.2262026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A34.205.195.662026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A34.225.62.1852026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A34.231.24.2242026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

○A52.29.238.2122026-03-14 → 2026-03-14 · 3 obs

● 2026-03-14 16:38:16
○ 2026-03-22 05:25:46
○ 2026-03-25 00:51:48

●A52.73.140.592026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A54.147.59.1692026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A54.163.235.1192026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A54.225.153.2052026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

●A54.92.199.1862026-03-22 → 2026-03-25 · 3 obs

○ 2026-03-14 16:38:16
● 2026-03-22 05:25:46
● 2026-03-25 00:51:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, g.gtld-servers.net, l.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	1 record