Data updated Oct 29, 2026
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Slack’s direct traffic went from 117.3M to 120.8M visits in one month. In the same window, Slack’s Sitemap added 224 pages, mostly under /blog. The timing overlaps — worth a closer look.
How the growth happened
Monthly visit estimates · 2026-04 — 2026-09 · DR 92, flat
Sep 2026
Monthly visits split by channel share: Slack added 4.5M visits from Aug to Sep, with direct contributing 78%.
| Channel | Last 4 months | Change barAug → Sep | Change | Share of change | Current share |
|---|---|---|---|---|---|
| Direct | +3.5M | 78% | 84.5% ↓0.2pp | ||
| Organic search | +595.7K | 13% | 4.6% ↑0.3pp | ||
| +224.3K | 5% | 3.2% ↑0.1pp | |||
| 5 other channels | +169.2K | 3.8% | 6.8% ↓0.1pp |
What you can borrow
Slack’s acquisition moves across pages, search terms and AI referrals, each with its data source.
| Keyword | Traffic | CPC | Rank |
|---|---|---|---|
| slackBrand | 2.2M | $2.42 | 1 |
| slack loginBrand | 143.4K | $4.22 | 2 |
| slack downloadUnclassified | 114.7K | $2.25 | 3 |
| スラックNon-brand | 77.9K | $2.07 | 4 |
| 슬랙Non-brand | 60K | $0.22 | 5 |
Borrow: Search traffic is mostly branded, riding existing awareness; the non-brand needs it does not cover are open to you.
Pages listed in the Sitemap grew 1% over 23 days, from 22.26K listed URLs to 22.48K listed URLs.
/marketplace−5/blog+2Borrow: Generate pages of this kind from data you already have (see /blog) to capture long-tail search.
1.1M visits from AI assistants (previous month 988.7K), 0.8% of all traffic.
Borrow: No need to follow yet; watch whether it scales next month.
Full growth history
Where did the +4.5M visits actually come from?
Slack grew 3.2% in Sep with almost no paid ads. Unlock the launch posts, community threads and new backlinks behind the spike, plus a launch checklist you can copy.
Slack's public Sitemap now lists 224 more URLs
Observed eventSlack's public Sitemap now lists 336 fewer URLs
Observed eventSlack's public Sitemap now lists 270 more URLs
Observed eventWhere it launched and who talked about it
Visible after unlockingWhere the new backlinks came from
Visible after unlockingA launch sequence you can copy
Visible after unlockingSame-market benchmark
Sep 2026 · Meetings and Collaboration
Each product uses its latest observed month; different months are not a same-period ranking.
Know the next time Slack ships pages in bulk
We diff its Sitemap, backlinks and traffic daily and alert you only on real changes.
Method: visits and channel shares are third-party monthly estimates; channel change = monthly visits × channel share, month over month; site actions and traffic are shown by timing only, not as cause and effect.
