OpenSpender's tech stack
What does OpenSpender use?
OpenSpender (openspender.com) uses at least 6 tools we can see from public records, including Google Workspace for email and documents, PostHog for analytics and Cloudflare for content delivery. Last checked .
- Tools found
- 6
- Categories
- 6
- Layers
- 5 of 5
- Last checked
- Oct 2026
OpenSpender'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
Company Ops
1 tool, what the team runs on day to day
Workspace
OpenSpender tech stack FAQ
What tools does OpenSpender use?
We've found 6 tools at OpenSpender (openspender.com). Edge & Hosting: Cloudflare. Application: Next.js. Data & Observability: PostHog. Company Ops: Google Workspace. Last checked October 2, 2026.
What email provider does OpenSpender use?
OpenSpender uses Google Workspace for email and documents. We found Google Workspace through email records.
What analytics tools does OpenSpender use?
OpenSpender uses PostHog for analytics. We found PostHog through website code.
Does OpenSpender use Cloudflare?
Yes. We found Cloudflare at OpenSpender through DNS records and website code. Cloudflare is used by 569,063 companies we track.
How does runsonwhat know what OpenSpender uses?
We read public traces only: OpenSpender's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website 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.