runsonwhat

Stack Exchange Inc.'s tech stack

What does Stack Exchange Inc. use?

Stack Exchange Inc. (stackoverflow.com) uses at least 25 tools we can see from public records, including Google Cloud for hosting, Microsoft 365 for email and documents, Zendesk for customer support and Mailchimp for marketing. Last checked .

Based in
United States
Founded
2008
LinkedIn
Company page
Re-check liveVisit stackoverflow.com
Tools found
25
Categories
11
Layers
4 of 5
Last checked
Oct 2026

Stack Exchange Inc.'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

2 tools, what the product is built with

AI

Go-to-market

4 tools, how they find and keep customers

Marketing

Support & Docs

Company Ops

17 tools, what the team runs on day to day

Email Delivery

Workspace

Collaboration

Dev Tools

Finance & Legal

Security & Compliance

Companies like Stack Exchange Inc. also use

Tools common among companies with a similar stack that we haven't found at Stack Exchange Inc..

Companies with a stack like Stack Exchange Inc.'s

Ranked by shared tools, with rare tools counting more.

Stack Exchange Inc. tech stack FAQ

What tools does Stack Exchange Inc. use?

We've found 25 tools at Stack Exchange Inc. (stackoverflow.com). Edge & Hosting: Cloudflare and Google Cloud. Application: Anthropic and OpenAI. Go-to-market: Mailchimp, Zendesk and Profound. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 1, 2026.

What cloud does Stack Exchange Inc. run on?

Stack Exchange Inc. uses Google Cloud for hosting. We found Google Cloud through custom domain.

What email provider does Stack Exchange Inc. use?

Stack Exchange Inc. uses Microsoft 365, Google Workspace and Apple Business for email and documents. We found Microsoft 365 through DNS verification records.

What does Stack Exchange Inc. use for customer support?

Stack Exchange Inc. uses Zendesk for customer support. We found Zendesk through email records.

What marketing software does Stack Exchange Inc. use?

Stack Exchange Inc. uses Mailchimp and Profound for marketing. We found Mailchimp through email records.

Does Stack Exchange Inc. use Microsoft 365?

Yes. We found Microsoft 365 at Stack Exchange Inc. through DNS verification records. Microsoft 365 is used by 245,233 companies we track.

How does runsonwhat know what Stack Exchange Inc. uses?

We read public traces only: Stack Exchange Inc.'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.