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Sites using Substack

Newsletter and publishing platform

#1 of 104 in Publishing Tracked since Apr 2026 Last seen: Sep 1, 2026 Website: substack.com
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1,442 sites

1,352 found by StackScope, 90 via launch platforms

StackScope Wider Web 1,289 StackScope Discovery (Indie) 63 Hacker News 48 Product Hunt 36 PeerPush 5 Other 1
  • StackScope Wider Web 1,289
  • StackScope Discovery (Indie) 63
  • Hacker News 48
  • Product Hunt 36
  • PeerPush 5
  • Other 1
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.1% +0.0pp
Most used with HSTS, Cloudflare, Cloudflare Bot Management
Top product types Content, Finance, Health
Green hosting 69% vs 45% avg

Substack has been detected on 1,442 launches we've crawled. The 7-day rolling share is 0.1%, roughly steady week on week. Most recent detection: TLCARCHIVE®, today.

It's most commonly paired with HSTS, Cloudflare, and Cloudflare Bot Management. By product type, the launches using it are most often Content (56%), Finance (9%), and Health (7%). By domain ending, launches using it are 2.5 times as likely as the average launch to live on a .co domain.

What kind of products ship with Substack

696 launches

Content
55.75%
Finance
8.62%
Health
6.75%
Education
5.46%
AI
4.31%
Marketing
3.74%
Productivity
3.30%
Social
3.30%
Developer Tools
2.59%
Games
1.72%
Crypto
1.01%
Design
1.01%
Directory
1.01%
E-commerce
0.86%
Hiring & HR
0.57%

Domain endings using Substack

1,433 sites

  • .com 64.90%
  • .co 5.51%
  • .org 4.68%
  • .ai 3.42%
  • .io 1.81%
  • .net 1.81%
  • .uk 1.81%
  • .ca 1.74%
  • .dev 1.47%
  • .me 1.40%
  • .app 1.26%
  • .xyz 0.98%
  • .blog 0.84%
  • .tech 0.84%
  • .in 0.77%

Country

18 of 1,442 sites, where we are confident of the country.

  • United States United States 88.89%
  • United Kingdom United Kingdom 5.56%
  • India India 5.56%

Share of new sites using Substack

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.

0.1%
last 7 days
+0.0pp vs prior week
1,442
sites all time
since Apr 2026
Substack daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 5% 2% 0% Apr May Jun Jul Aug Weekly averages before this point, daily after. Jun 3 · 0 / 714 = 0.0% Jun 4 · 1 / 599 = 0.2% Jun 5 · 0 / 581 = 0.0% Jun 6 · 0 / 436 = 0.0% Jun 7 · 0 / 404 = 0.0% Jun 8 · 0 / 515 = 0.0% Jun 9 · 0 / 876 = 0.0% Jun 10 · 1 / 722 = 0.1% Jun 11 · 0 / 577 = 0.0% Jun 12 · 0 / 449 = 0.0% Jun 13 · 0 / 380 = 0.0% Jun 14 · 0 / 345 = 0.0% Jun 15 · 2 / 532 = 0.4% Jun 16 · 0 / 1052 = 0.0% Jun 17 · 1 / 907 = 0.1% Jun 18 · 0 / 674 = 0.0% Jun 19 · 2 / 547 = 0.4% Jun 20 · 0 / 443 = 0.0% Jun 21 · 1 / 383 = 0.3% Jun 22 · 1 / 576 = 0.2% Jun 23 · 1 / 900 = 0.1% Jun 24 · 1 / 737 = 0.1% Jun 25 · 1 / 618 = 0.2% Jun 26 · 1 / 534 = 0.2% Jun 27 · 1 / 431 = 0.2% Jun 28 · 0 / 383 = 0.0% Jun 29 · 1 / 503 = 0.2% Jun 30 · 2 / 801 = 0.2% Jul 1 · 1 / 795 = 0.1% Jul 2 · 2 / 604 = 0.3% Jul 3 · 1 / 499 = 0.2% Jul 4 · 0 / 411 = 0.0% Jul 5 · 0 / 367 = 0.0% Jul 6 · 2 / 551 = 0.4% Jul 7 · 2 / 1171 = 0.2% Jul 8 · 7 / 12590 = 0.1% Jul 9 · 6 / 23745 = 0.0% Jul 10 · 7 / 22552 = 0.0% Jul 11 · 9 / 15979 = 0.1% Jul 12 · 10 / 20291 = 0.0% Jul 13 · 6 / 20923 = 0.0% Jul 14 · 13 / 20408 = 0.1% Jul 15 · 5 / 17242 = 0.0% Jul 16 · 7 / 14264 = 0.0% Jul 17 · 9 / 19732 = 0.0% Jul 18 · 7 / 22700 = 0.0% Jul 19 · 15 / 26074 = 0.1% Jul 20 · 8 / 22585 = 0.0% Jul 21 · 7 / 21649 = 0.0% Jul 22 · 16 / 23202 = 0.1% Jul 23 · 9 / 16863 = 0.1% Jul 24 · 4 / 12855 = 0.0% Jul 25 · 4 / 8947 = 0.0% Jul 26 · 8 / 19978 = 0.0% Jul 27 · 20 / 33868 = 0.1% Jul 28 · 17 / 38221 = 0.0% Jul 29 · 27 / 50105 = 0.1% Jul 30 · 21 / 43953 = 0.0% Jul 31 · 31 / 51110 = 0.1% Aug 1 · 38 / 50488 = 0.1% Aug 2 · 26 / 49662 = 0.1% Aug 3 · 27 / 48190 = 0.1% Aug 4 · 17 / 37326 = 0.0% Aug 5 · 18 / 32706 = 0.1% Aug 6 · 23 / 36581 = 0.1% Aug 7 · 18 / 37889 = 0.0% Aug 8 · 12 / 39682 = 0.0% Aug 9 · 20 / 34205 = 0.1% Aug 10 · 13 / 28848 = 0.0% Aug 11 · 17 / 32021 = 0.1% Aug 12 · 21 / 33479 = 0.1% Aug 13 · 20 / 49914 = 0.0% Aug 14 · 36 / 51430 = 0.1% Aug 15 · 34 / 51492 = 0.1% Aug 16 · 27 / 51814 = 0.1% Aug 17 · 26 / 41418 = 0.1% Aug 18 · 22 / 53844 = 0.0% Aug 19 · 38 / 49416 = 0.1% Aug 20 · 34 / 66833 = 0.1% Aug 21 · 58 / 90359 = 0.1% Aug 22 · 49 / 91515 = 0.1% Aug 23 · 55 / 90229 = 0.1% Aug 24 · 45 / 78860 = 0.1% Aug 25 · 50 / 69248 = 0.1% Aug 26 · 42 / 65059 = 0.1% Aug 27 · 65 / 83368 = 0.1% Aug 28 · 70 / 83321 = 0.1% Aug 29 · 45 / 84164 = 0.1% Aug 30 · 66 / 92097 = 0.1% Aug 31 · 49 / 88763 = 0.1%
Mar 30, 2026 90 days Aug 31, 2026

The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

Publishing leaders

Tool % of launches % of category
#1 – Substack Current page 0.06% 49.64%
#2 – Open Journal Systems 0.01% 12.72%
#3 – Gist 0.01% 5.95%
#4 – FeedBurner 0.01% 4.39%
#5 ▼2 DOI <0.01% 2.70%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Publishing tool. All 104 in Publishing →

Often used with

Tool Launches
HSTS 77
Cloudflare 76
Cloudflare Bot Management 67
HTTP/3 62
Google Fonts 59

Tools most often detected on the same launches as Substack.

Recent launches we can show

153 of the 1,442 sites using Substack are product launches we list individually. The other 1,289 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works

TLCARCHIVE® Sep 1, 2026 Social Slidle — A Sliding Word Puzzle Sep 1, 2026 Games Screenshot of The Answer-Engine Audit, a launch using Substack The Answer-Engine Audit Sep 1, 2026 · score 2.7 AI Quiet Alpha — SEC-filing intelligence for US microcaps Aug 31, 2026 Finance Conscope Aug 31, 2026 Content ENTERNET — One front door to everything Aug 30, 2026 yournewhandle — handle generator & username checker Aug 30, 2026 Costco Membership Calculator: Is Executive Worth It? Aug 30, 2026 Nonprofit Channel Playbook | AI-augmented comms, channel by channel Aug 29, 2026 Marketing Screenshot of Blog, a launch using Substack Blog Aug 29, 2026 · score 8.6 United States Crypto Screenshot of God’s Eye View, a launch using Substack God’s Eye View Aug 29, 2026 · score 8.2 The Finance Flow — Follow the money. Understand the flow. Aug 28, 2026 Finance

Showing the most recent 12 of 153.

The StackScope API serves all 1,442 sites using Substack, filterable and exportable, from £15 a month.

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