slack.com

Live check Visit ↗

slack.com is ranked #350 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 3 places in four weeks. The domain was registered on Oct 21, 1992, 33 years, 11 months ago, through MarkMonitor Inc., and is paid up until Oct 20, 2027. Its homepage uses Google Tag Manager. It is served by Apache and Envoy.

Global rank

#350

▲ 3 this week

Domain age

33 years

since Oct 21, 1992

Technologies

detected on the homepage

SEO score

91/100

homepage checks

Popularity rank

#350 of the top 1 million sites in the Tranco research ranking, which averages several traffic and DNS sources over 30 days. Best rank in the period shown: #317.

Weekly Tranco rank (lower is more popular).

See where slack.com sits in the top 10,000

Domain registration

Registered: Oct 21, 1992 (33 years, 11 months ago)
Expires: Oct 20, 2027
Registrar: MarkMonitor Inc.
Name servers: ns-1493.awsdns-58.org, ns-166.awsdns-20.com, ns-1901.awsdns-45.co.uk, ns-606.awsdns-11.net
DNSSEC: Signed

From the registry's public RDAP record, checked Oct 1, 2026.

Technology stack

Analytics

Google Tag Manager

Web servers

Apache Envoy

Detected from the homepage HTML and response headers on Oct 14, 2026. Tools loaded only after scripts run (or after consent banners) may be missing.

Homepage SEO check

Checked from the HTML our scanner received on Oct 14, 2026. Content added later by JavaScript isn't counted.

91/100

https://slack.com/

Slack | AI Work Platform & Productivity Tools

Boost productivity and save time with Slack‌ — ‌the AI work platform for managing projects, automating workflows, and connecting teams securely. Start working smarter today.

19 passed · 4 warnings · 0 failed

Content

✓Title45 characters
!Meta description173 characters — aim for 50–170
✓H1 headingExactly one H1
✓Subheadings10 H2 headings
✓Image alt textAll 89 images have alt text
✓Content lengthAbout 1,661 words

Indexing

✓IndexableNo noindex directive
✓Canonical URLhttps://slack.com
✓robots.txtFound
✓XML sitemapFound
✓Language attributeen-US
ihreflang16 language alternates
!Structured dataNo JSON-LD or microdata

Social sharing

✓Open GraphTitle, description and image set
✓Twitter / X cardsummary_large_image

Technical

✓HTTPSServed over HTTPS
✓Mobile viewportFound
✓FaviconFound
✓Character encodingutf-8

Security headers

✓Strict-Transport-SecuritySet
!Content-Security-PolicyNot set
✓Clickjacking protectionSet
!X-Content-Type-OptionsNot set
✓Referrer-PolicySet

Server response

Final URL: https://slack.com/
HTTP status: 200
Server: Apache
Response time: 151 ms (first byte 150 ms, from our scanner in a US data centre)
HTML size: 248 KB
Compression: br

Sites ranked near slack.com

Rank	Website	Registered	Built with
#345	demdex.net	2008	—
#346	myshopify.com	2006	Cloudflare
#347	naver.com	1997	—
#348	facebook.net	2004	—
#349	tbcache.com	2010	—
#351	ea.com	1993	Next.js, React, Google Tag Manager
#352	onelink.me	—	WordPress, Cloudflare, jQuery
#353	mobile.de	—	Akamai
#354	trustpilot.com	2007	—
#355	nasa.gov	1997	Nginx

Questions about slack.com

How popular is slack.com?

slack.com is #350 worldwide in the Tranco list published Oct 13, 2026.

How old is slack.com?

slack.com was registered on Oct 21, 1992, which makes the domain 33 years, 11 months old.

What is slack.com built with?

We detected Google Tag Manager, Apache and Envoy on its homepage.

Who is the registrar of slack.com?

MarkMonitor Inc., according to the registry's RDAP record.