slack.com

Observed 2026-07-13T00:04:03.698298767+00:00 (9h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byGoogle Workspace

Secured byLet's Encrypt

Registered withMarkMonitor Inc.

Also usesGoogle Search ConsoleHubSpot

DNSSEC on · ecommerce

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat slack.com actually stands on - every host below is a signed observation

slack.com

A / AAAA

54.225.153.2053.95.117.963.210.88.634.193.255.5+11 more

Amazonserves the site

ns-166.awsdns-20.comns-606.awsdns-11.netns-1493.awsdns-58.orgns-1901.awsdns-45.co.uk

awsdns-20.com + awsdns-11.net + moreanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more

Google Workspacereceives its email

TLS

slack.com

Let's Encryptissued its certificate

DNS Records

A 15

54.225.153.205
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

MX 5

1aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com
10aspmx2.googlemail.com
10aspmx3.googlemail.com

TXT 16

OSSRH-54733
_0vidyxobp6x350odqhb4fo7fdxhmtq3
spycloud-domain-verification=02e4c0be-cf43-44e4-beaf-4f99702ca632
google-site-verification=2PK67oVPNyEtS1avSlr3PhH5nSiFuticbQv_bT4pM2k
google-site-verification=KqX3Ngw0XEjz_0GVx_xwFFlCoO-bskhqU_lxv0Q77mk
google-site-verification=QvelFPjIOe3Vavw0q-aAVYaAPKmWCRjmmVVEAjgfjQc
google-site-verification=efuXt5-oMr2CdNmVi6A9IO29KMKifpseD1qokxjWwcE
google-site-verification=kB1KvgpSk9YkHsFmsj1VPI5YmDvfKctPxnplhGjyqtE
google-site-verification=o2grd1TLmZZ8GrqbhVIFtzO2MRLTtSUpBBIBYfhQVCQ
google-site-verification=v-LLB__IhraaI7ZzuE3jvRFIm2vERPLzWoepAEZJtKQ

NS 4

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

SOA 1

ns-1493.awsdns-58.org awsdns-hostmaster.amazon.com

CAA 3

iodef "mailto:hostmaster@slack-corp.com"
issue "digicert.com; account=455b15ed272bed097725c6ea50e89921fc57379c5338a29305c05771df65fff1"
issue "letsencrypt.org; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/1532134906"

TLS Certificates (3)

Common Name	Issuer	Expires
`slack.com`	C=US, O=Let's Encrypt, CN=YR2	Thu, 03 Sep 2026 09:48:09 +0000
`YR2`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (0)

None observed.

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for slack.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/slack.com">
  <img src="https://domaindrift.io/badge/slack.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for slack.com">
</a>

Ed25519 Receipt

Receipt ID: d5425b0f-4b07-40a4-b369-762a8cb009a2
Output Hash: fb3f579668431782990a8f4f2b011bedb60866461eb1bb0881fe54626ce7d114
Signature: ed25519:b87c998ad157ab72f6b33af851b74efff5d3aab0a6ba7de5bf81acf2723a50135bf4441f5ef17c21bb1a85e7ea9642187a2b76b3ca426e2f18be81d8f4febc0f
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/slack.com