# What does SIIN GmbH use?

SIIN GmbH (siin.de) shows public evidence of 9 tools, according to runsonwhat (last checked 2026-11-13).

- Industry: Architecture & Planning
- Size: 51–200 employees
- Based in: Stuttgart, Germany
- Founded: 2021
- LinkedIn: https://www.linkedin.com/company/siin

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |
| [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code |  |
| [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records, Website code |  |

## FAQ

### What tools does SIIN use?

As of November 2026, runsonwhat has found 9 tools at SIIN (siin.de) in public records. Edge & Hosting: Cloudflare and GoDaddy. Application: jQuery, Vimeo and YouTube. Go-to-market: WordPress and Yoast SEO. Company Ops: Microsoft 365. Last checked November 13, 2026.

### What email provider does SIIN use?

SIIN uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 736,695 companies runsonwhat tracks.

### What is SIIN's website built with?

SIIN uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on siin.de. WordPress is used by 606,945 companies runsonwhat tracks.

### Does SIIN use jQuery?

Yes. runsonwhat found jQuery at SIIN through jQuery code on siin.de. jQuery is a Frontend tool used by 927,275 companies runsonwhat tracks.

### How does runsonwhat know what SIIN uses?

runsonwhat reads public records only. Of the 9 tools at SIIN, 7 were found through code on siin.de, 2 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and siin.de about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/siin.de (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.