# What does GSAK use?

GSAK (gsak.de) shows public evidence of 16 tools, according to runsonwhat (last checked 2026-11-10).

- Industry: Waste Management
- Size: 11–50 employees
- Based in: Krefeld, Germany
- Founded: 1994
- LinkedIn: https://www.linkedin.com/company/gsak

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Custom domain |  |

## 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 |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |
| [Hotjar](https://www.runsonwhat.com/reverse/hotjar) | Analytics | Website code |  |
| [Contentsquare](https://www.runsonwhat.com/reverse/contentsquare) | Analytics | Website code |  |
| [Azure Monitor](https://www.runsonwhat.com/reverse/azure-monitor) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | Website code |  |
| [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code |  |
| [Awin](https://www.runsonwhat.com/reverse/awin) | Ads & Pixels | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records |  |
| [Usercentrics](https://www.runsonwhat.com/reverse/usercentrics) | Security & Compliance | Website code |  |

## FAQ

### What tools does GSAK use?

As of November 2026, runsonwhat has found 16 tools at GSAK (gsak.de) in public records. Edge & Hosting: Microsoft Azure. Application: React, Tailwind CSS and Next.js. Data & Observability: Google Analytics, Hotjar and Contentsquare. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Atlassian and Usercentrics. Last checked November 10, 2026.

### What cloud does GSAK run on?

GSAK uses Microsoft Azure for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Microsoft Azure through a subdomain that points at Microsoft Azure. Microsoft Azure is used by 50,859 companies runsonwhat tracks.

### What email provider does GSAK use?

GSAK 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. Microsoft 365 is used by 735,958 companies runsonwhat tracks.

### What analytics tools does GSAK use?

GSAK uses Google Analytics for analytics, alongside Hotjar, Contentsquare and Azure Monitor, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on gsak.de. Google Analytics is used by 904,009 companies runsonwhat tracks.

### Does GSAK use Google Ads?

Yes. runsonwhat found Google Ads at GSAK through Google Ads code on gsak.de. Google Ads is a Ads & Pixels tool used by 540,248 companies runsonwhat tracks.

### How does runsonwhat know what GSAK uses?

runsonwhat reads public records only. Of the 16 tools at GSAK, 13 were found through code on gsak.de, 2 through DNS records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and gsak.de about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/gsak.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.