Claude's tech stack
What does Claude use?
Claude (claudeusercontent.com) uses at least 5 tools we can see from public records, including Segment for analytics and Cloudflare for content delivery. Last checked .
- Company page
- Tools found
- 5
- Categories
- 5
- Layers
- 4 of 5
- Last checked
- Oct 2026
Claude's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
1 tool, where the bytes are served from
CDN & Edge
Application
2 tools, what the product is built with
Frontend
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
1 tool, how they find and keep customers
Marketing
Claude tech stack FAQ
What tools does Claude use?
As of October 2026, runsonwhat has found 5 tools at Claude (claudeusercontent.com) in public records. Edge & Hosting: Cloudflare. Application: Next.js. Data & Observability: Segment. Last checked October 20, 2026.
What analytics tools does Claude use?
Claude uses Segment for analytics, according to runsonwhat (October 2026). runsonwhat found Segment through Segment code on claudeusercontent.com. Segment is used by 6,706 companies runsonwhat tracks.
Does Claude use Cloudflare?
Yes. runsonwhat found Cloudflare at Claude through DNS records that point at Cloudflare and code on claudeusercontent.com. Cloudflare is a CDN & Edge tool used by 712,278 companies runsonwhat tracks.
How does runsonwhat know what Claude uses?
runsonwhat reads public records only. Of the 5 tools at Claude, 3 were found through code on claudeusercontent.com, 1 through DNS records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and claudeusercontent.com about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.