# What does Closed Door Security use?

Closed Door Security (cdsec.ae) shows public evidence of 9 tools, according to runsonwhat (last checked 2026-10-20).

- Industry: Computer & Network Security
- Size: 11–50 employees
- Based in: United Arab Emirates
- Founded: 2015
- LinkedIn: https://www.linkedin.com/company/cdsec

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |
| [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records |  |

## 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 |  |

## Company Ops

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

## FAQ

### What tools does Closed Door Security use?

As of October 2026, runsonwhat has found 9 tools at Closed Door Security (cdsec.ae) in public records. Edge & Hosting: Cloudflare and Vercel. Application: Next.js and Anthropic. Data & Observability: Google Analytics and Google Tag Manager. Company Ops: Microsoft 365 and Notion. Last checked October 20, 2026.

### What cloud does Closed Door Security run on?

Closed Door Security uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through Vercel code on cdsec.ae. Vercel is used by 48,823 companies runsonwhat tracks.

### What email provider does Closed Door Security use?

Closed Door Security uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 714,964 companies runsonwhat tracks.

### What analytics tools does Closed Door Security use?

Closed Door Security uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on cdsec.ae. Google Analytics is used by 888,042 companies runsonwhat tracks.

### Does Closed Door Security use Cloudflare?

Yes. runsonwhat found Cloudflare at Closed Door Security through DNS records that point at Cloudflare and code on cdsec.ae. Cloudflare is a CDN & Edge tool used by 707,619 companies runsonwhat tracks.

### Does Closed Door Security use AI tools?

Yes. runsonwhat has found Anthropic at Closed Door Security; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Closed Door Security may use more AI tools than these.

### How does runsonwhat know what Closed Door Security uses?

runsonwhat reads public records only. Of the 9 tools at Closed Door Security, 4 were found through code on cdsec.ae, 4 through DNS records and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and cdsec.ae about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/cdsec.ae (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.