Claude's tech stack
What does Claude use?
Claude (claude.com) uses at least 10 tools we can see from public records, including Google Cloud for hosting, Segment for analytics, Sanity for its website and Atlassian Statuspage for monitoring. Last checked .
- Company page
- Tools found
- 10
- Categories
- 8
- Layers
- 4 of 5
- Changes seen
- 1
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
2 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
4 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Monitoring
Analytics
Go-to-market
2 tools, how they find and keep customers
Website & CMS
Marketing
What changed at Claude
Recent starts and stops
- StartedMCP Registry
Claude tech stack FAQ
What tools does Claude use?
As of October 2026, runsonwhat has found 10 tools at Claude (claude.com) in public records. Edge & Hosting: Cloudflare and Google Cloud. Application: React, Next.js and MCP Registry. Data & Observability: Atlassian Statuspage and Segment. Go-to-market: Sanity. Last checked October 20, 2026.
What cloud does Claude run on?
Claude uses Google Cloud for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Google Cloud through a subdomain that points at Google Cloud. Google Cloud is used by 75,439 companies runsonwhat tracks.
What analytics tools does Claude use?
Claude uses Segment for analytics, according to runsonwhat (October 2026). runsonwhat found Segment through Segment code on claude.com. Segment is used by 6,523 companies runsonwhat tracks.
What is Claude's website built with?
Claude uses Sanity for its website, according to runsonwhat (October 2026). runsonwhat found Sanity through Sanity code on claude.com. Sanity is used by 4,832 companies runsonwhat tracks.
What monitoring tools does Claude use?
Claude uses Atlassian Statuspage for monitoring, according to runsonwhat (October 2026). runsonwhat found Atlassian Statuspage through a subdomain that points at Atlassian Statuspage. Atlassian Statuspage is used by 6,598 companies runsonwhat tracks.
Does Claude use Cloudflare?
Yes. runsonwhat found Cloudflare at Claude through DNS records that point at Cloudflare and code on claude.com. Cloudflare is a CDN & Edge tool used by 698,105 companies runsonwhat tracks.
Does Claude use AI tools?
Yes. runsonwhat has found MCP Registry at Claude; MCP Registry, for example, through a DNS verification record for MCP Registry. AI services called only from servers leave no public trace, so Claude may use more AI tools than these.
Has Claude changed tools recently?
Yes. On runsonwhat's rechecks, Claude started using MCP Registry (latest on October 20, 2026). A change counts only between two checks of claude.com done the same way.
How does runsonwhat know what Claude uses?
runsonwhat reads public records only. Of the 10 tools at Claude, 4 were found through code on claude.com, 3 through DNS records, 2 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and claude.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.