# What does GREENZERO GmbH use?

GREENZERO GmbH (greenzero.eu) shows public evidence of 15 tools, according to runsonwhat (last checked 2026-10-08).

- Industry: Environmental Services
- Size: 51–200 employees
- Based in: Herten, Germany
- Founded: 2021
- LinkedIn: https://www.linkedin.com/company/greenzero

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Email records, Website code |  |
| [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | Custom domain, DNS verification records, 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 |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |
| [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code |  |
| [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code |  |
| [PostHog](https://www.runsonwhat.com/reverse/posthog) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records, Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, DNS verification records |  |
| [Cloudflare Turnstile](https://www.runsonwhat.com/reverse/turnstile) | Security & Compliance | Website code |  |
| [Hornetsecurity](https://www.runsonwhat.com/reverse/hornetsecurity) | Security & Compliance | Email records |  |

## FAQ

### What tools does GREENZERO use?

As of October 2026, runsonwhat has found 15 tools at GREENZERO (greenzero.eu) in public records. Edge & Hosting: Cloudflare and Vercel. Application: React, Tailwind CSS and Next.js. Data & Observability: Google Analytics, Google Tag Manager and web-vitals. Go-to-market: Google Ads and HubSpot. Company Ops: Microsoft 365, Cloudflare Turnstile and Hornetsecurity. Last checked October 8, 2026.

### What cloud does GREENZERO run on?

GREENZERO uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a subdomain that points at Vercel and a DNS verification record. Vercel is used by 46,658 companies runsonwhat tracks.

### What CRM does GREENZERO use?

GREENZERO uses HubSpot for its CRM, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on greenzero.eu. HubSpot is used by 92,110 companies runsonwhat tracks.

### What email provider does GREENZERO use?

GREENZERO uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 701,710 companies runsonwhat tracks.

### What analytics tools does GREENZERO use?

GREENZERO uses Google Analytics for analytics, alongside Google Tag Manager and PostHog, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on greenzero.eu. Google Analytics is used by 853,379 companies runsonwhat tracks.

### What monitoring tools does GREENZERO use?

GREENZERO uses web-vitals for monitoring, according to runsonwhat (October 2026). runsonwhat found web-vitals through web-vitals code on greenzero.eu. web-vitals is used by 26,081 companies runsonwhat tracks.

### Does GREENZERO use Cloudflare?

Yes. runsonwhat found Cloudflare at GREENZERO through DNS records that point at Cloudflare and email records. Cloudflare is a CDN & Edge tool used by 692,707 companies runsonwhat tracks.

### How does runsonwhat know what GREENZERO uses?

runsonwhat reads public records only. Of the 15 tools at GREENZERO, 9 were found through code on greenzero.eu, 3 through email records, 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 greenzero.eu about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/greenzero.eu (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.