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Domain report

slack.com

slack.com ranks in the top 0.00010% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 17,559 distinct hosts observed under it.

Explore slack.com in the Web Graph

Connectivity

#137harmonic-centrality rank
Top percentile
0.00010%
Hosts observed
17,559

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://slack.com/ answered with HTTP 200.

DNS records

A
  • 18.221.229.81
  • 3.22.139.176
  • 3.129.123.235
  • 3.130.95.182
  • 3.134.44.134
  • 3.142.111.40
  • 3.143.19.65
  • 3.143.53.1
  • 18.216.36.190
AAAA
No records found.
MX
  • 1 aspmx.l.google.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
  • 10 aspmx2.googlemail.com.
  • 10 aspmx3.googlemail.com.
NS
  • ns-166.awsdns-20.com.
  • ns-606.awsdns-11.net.
  • ns-1493.awsdns-58.org.
  • ns-1901.awsdns-45.co.uk.

Live preview

Screenshot of slack.com

This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.

Since slack.com can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=utf-8
Cache-Control
Not sent
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
Not sent
Referrer-Policy
no-referrer
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://slack.com/HTTP 301

    → https://slack.com/

  2. 2.https://slack.com/HTTP 200

Meta tags

Title
Slack | AI Work Platform & Productivity Tools
Description
Boost productivity and save time with Slack‌ — ‌the AI work platform for managing projects, automating workflows, and connecting teams securely. Start working smarter today.
Canonical
https://slack.com
Robots
Not set
Generator
Not set
Open Graph title
Slack | AI Work Platform & Productivity Tools
Open Graph description
Boost productivity and save time with Slack‌ — ‌the AI work platform for managing projects, automating workflows, and connecting teams securely. Start working smarter today.
Open Graph image
https://a.slack-edge.com/73a2348/marketing/img/homepage/revamped-24/unfurl/hp-revamp-unfurl.jpg
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Slack | AI Work Platform & Productivity Tools
Twitter image
https://a.slack-edge.com/73a2348/marketing/img/homepage/revamped-24/unfurl/hp-revamp-unfurl.jpg

robots.txt

Disallow rules (User-agent: *)
15
Disallow rules (other agents)
0

Sitemaps declared:

  • https://slack.com/sitemap.xml
  • https://slack.com/sitemap_marketplace.xml
  • https://slack.com/sitemaps/blog/news/sitemap.xml

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • Google Tag Manageranalytics

    Found "googletagmanager.com/gtm.js" in the page's HTML

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.