Technology report · CMS
Substack usage report
As of 2026-10-28, Substack was detected on 60 of the 66086 websites we scanned, a share of 0.1%. It is classified as a CMS. Among the 9 sites where we could determine an industry, 8 are news and media and 1 is a personal site. Most of these sites also run Cloudflare, Express and Node.js.
- 60websites using it
- 0.1%of 66,086 scanned websites with a detected technology
- 2026-10-28data date
Industry data covers only part of the group: 9 of the 60 Substack sites had a known industry. Within that group, News and media accounts for 88.9% (8 sites) and Personal sites for 11.1% (1 site). Example domains include rightwingnews.com, a16z.news, culturcidal.com, bigtechnology.com and theclimatebrink.com.
Cloudflare, Cloudflare Web Analytics, Datadog RUM, Express and Node.js each appear on 95.0% of the Substack sites, which is 57 sites apiece. Sentry follows at 93.3% (56 sites). Google Analytics appears on 38.3% (23 sites) and Google Fonts on 28.3% (17 sites). These are technologies detected alongside Substack on the same sites.
We recorded no version information. The count of sites with a detectable version is 0, so there is no version breakdown to read. The 0.1% share is measured against all 66086 scanned sites, so it describes this scan only and should not be read as a figure for the whole web.
Industries using Substack
| Industry | Websites | Share of 9 classified |
|---|---|---|
| News and media | 8 | 88.9% |
| Personal sites | 1 | 11.1% |
Technologies used together with Substack
| Technology | Websites | Share of Substack sites |
|---|---|---|
| Cloudflare | 57 | 95% |
| Cloudflare Web Analytics | 57 | 95% |
| Datadog RUM | 57 | 95% |
| Express | 57 | 95% |
| Node.js | 57 | 95% |
| Sentry | 56 | 93.3% |
| Google Analytics | 23 | 38.3% |
| Google Fonts | 17 | 28.3% |
Example company websites
rightwingnews.com, a16z.news, culturcidal.com, bigtechnology.com, theclimatebrink.com
FAQ
- How many websites use Substack?
- We detected Substack on 60 of the 66086 websites scanned, which is a share of 0.1%. The data date is 2026-10-28, and the figure reflects only the sites in our scan.
- What industries use Substack?
- Of the 9 Substack sites with a known industry, 8 (88.9%) are in news and media and 1 (11.1%) is a personal site. The other sites had no industry we could determine.
- What technologies are commonly found alongside Substack?
- Cloudflare, Cloudflare Web Analytics, Datadog RUM, Express and Node.js each appear on 95.0% of Substack sites. Sentry appears on 93.3%, Google Analytics on 38.3% and Google Fonts on 28.3%.
- Which Substack versions are in use?
- No version data is available. Our scan found 0 Substack sites with a detectable version, so we cannot report which versions are in use or how they are distributed.
- What kind of technology is Substack?
- We categorize Substack as a CMS, meaning a content management system. This page reports where we detected it, the industries of those sites and the other technologies found on them.
Check your own list
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