# What does Zenn use?

Zenn (zenn.dev) shows public evidence of 17 tools, according to runsonwhat (last checked 2026-10-31).

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code |  |
| [Google Cloud](https://www.runsonwhat.com/reverse/gcp) | Hosting & Cloud | Website code |  |
| [GitHub Pages](https://www.runsonwhat.com/reverse/github-pages) | Hosting & Cloud | Custom domain |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |
| [Cloudinary](https://www.runsonwhat.com/reverse/cloudinary) | Media & UI | 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 |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records |  |
| [EasyDMARC](https://www.runsonwhat.com/reverse/easydmarc) | Security & Compliance | Email records |  |

## FAQ

### What tools does Zenn use?

As of October 2026, runsonwhat has found 17 tools at Zenn (zenn.dev) in public records. Edge & Hosting: Cloudflare, Google Cloud and GitHub Pages. Application: React, Next.js and Cloudinary. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads. Company Ops: Google Workspace, SendGrid and Let's Encrypt. Last checked October 31, 2026.

### What cloud does Zenn run on?

Zenn uses Google Cloud for hosting and cloud infrastructure, alongside GitHub Pages, according to runsonwhat (October 2026). runsonwhat found Google Cloud through Google Cloud code on zenn.dev. Google Cloud is used by 76,311 companies runsonwhat tracks.

### What email provider does Zenn use?

Zenn uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on zenn.dev. Google Workspace is used by 406,749 companies runsonwhat tracks.

### What analytics tools does Zenn use?

Zenn uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on zenn.dev. Google Analytics is used by 899,227 companies runsonwhat tracks.

### Does Zenn use Cloudflare?

Yes. runsonwhat found Cloudflare at Zenn through DNS records that point at Cloudflare and code on zenn.dev. Cloudflare is a CDN & Edge tool used by 714,263 companies runsonwhat tracks.

### How does runsonwhat know what Zenn uses?

runsonwhat reads public records only. Of the 17 tools at Zenn, 7 were found through code on zenn.dev, 6 through DNS records, 3 through email 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 zenn.dev about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/zenn.dev (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.