# What does OOPSIE use?

OOPSIE (oopsie.bio) shows public evidence of 8 tools, according to runsonwhat (last checked 2026-11-08).

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |
| [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code |  |
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records |  |

## FAQ

### What tools does OOPSIE use?

As of November 2026, runsonwhat has found 8 tools at OOPSIE (oopsie.bio) in public records. Edge & Hosting: Cloudflare. Application: React, Tailwind CSS and Next.js. Company Ops: Let's Encrypt, Sectigo and DigiCert. Last checked November 8, 2026.

### Does OOPSIE use Cloudflare?

Yes. runsonwhat found Cloudflare at OOPSIE through DNS records that point at Cloudflare and code on oopsie.bio. Cloudflare is a CDN & Edge tool used by 729,894 companies runsonwhat tracks.

### How does runsonwhat know what OOPSIE uses?

runsonwhat reads public records only. Of the 8 tools at OOPSIE, 5 were found through DNS records, 3 through code on oopsie.bio. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and oopsie.bio about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/oopsie.bio (updated November 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.