# What does StumbleUpon use?

StumbleUpon (stumbleupon.com) shows public evidence of 9 tools, according to runsonwhat (last checked 2026-10-20).

- Based in: United States
- Founded: 2001
- LinkedIn: https://www.linkedin.com/company/stumbleupon

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code |  |
| [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |
| [Adobe Fonts](https://www.runsonwhat.com/reverse/adobe-fonts) | Media & UI | Website code |  |
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code |  |
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |

## FAQ

### What tools does StumbleUpon use?

As of October 2026, runsonwhat has found 9 tools at StumbleUpon (stumbleupon.com) in public records. Edge & Hosting: Amazon Web Services and Amazon Route 53. Application: Google Fonts, React and Adobe Fonts. Data & Observability: Google Analytics. Company Ops: Google Workspace and reCAPTCHA. Last checked October 20, 2026.

### What cloud does StumbleUpon run on?

StumbleUpon uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on stumbleupon.com. Amazon Web Services is used by 145,475 companies runsonwhat tracks.

### What email provider does StumbleUpon use?

StumbleUpon uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on stumbleupon.com. Google Workspace is used by 401,486 companies runsonwhat tracks.

### What analytics tools does StumbleUpon use?

StumbleUpon uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on stumbleupon.com. Google Analytics is used by 874,767 companies runsonwhat tracks.

### Does StumbleUpon use Google Fonts?

Yes. runsonwhat found Google Fonts at StumbleUpon through Google Fonts code on stumbleupon.com. Google Fonts is a Media & UI tool used by 806,013 companies runsonwhat tracks.

### How does runsonwhat know what StumbleUpon uses?

runsonwhat reads public records only. Of the 9 tools at StumbleUpon, 7 were found through code on stumbleupon.com, 1 through email records and 1 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and stumbleupon.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/stumbleupon.com (updated October 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.