# What does Stack use?

Stack (stack.com.br) shows public evidence of 11 tools, according to runsonwhat (last checked 2026-10-29).

- Industry: Construction
- Size: 11–50 employees
- Based in: Nova Odessa, Brazil
- LinkedIn: https://www.linkedin.com/company/suastack

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | 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 |  |
| [Microsoft Clarity](https://www.runsonwhat.com/reverse/clarity) | 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 |  |
| [WhatsApp Business](https://www.runsonwhat.com/reverse/whatsapp) | Support & Docs | 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 | DNS verification records, Email records, Website code |  |

## FAQ

### What tools does Stack use?

As of November 2026, runsonwhat has found 11 tools at Stack (stack.com.br) in public records. Edge & Hosting: Cloudflare. Application: Tailwind CSS. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and WhatsApp Business. Company Ops: Microsoft 365. Last checked October 29, 2026.

### What CRM does Stack use?

Stack uses HubSpot for its CRM, according to runsonwhat (November 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on stack.com.br. HubSpot is used by 95,673 companies runsonwhat tracks.

### What email provider does Stack use?

Stack 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 716,236 companies runsonwhat tracks.

### What does Stack use for customer support?

Stack uses WhatsApp Business for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found WhatsApp Business through WhatsApp Business code on stack.com.br. WhatsApp Business is used by 137,259 companies runsonwhat tracks.

### What analytics tools does Stack use?

Stack uses Google Analytics for analytics, alongside Google Tag Manager and Microsoft Clarity, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on stack.com.br. Google Analytics is used by 900,002 companies runsonwhat tracks.

### Does Stack use Cloudflare?

Yes. runsonwhat found Cloudflare at Stack through DNS records that point at Cloudflare and code on stack.com.br. Cloudflare is a CDN & Edge tool used by 715,313 companies runsonwhat tracks.

### How does runsonwhat know what Stack uses?

runsonwhat reads public records only. Of the 11 tools at Stack, 7 were found through code on stack.com.br, 2 through DNS records, 1 through website configuration files and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and stack.com.br about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/stack.com.br (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.