# What does HTML Viewer use?

HTML Viewer (html-viewer.org) shows public evidence of 14 tools, according to runsonwhat (last checked 2026-10-09).

- Founded: 2026

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |
| [Adobe Fonts](https://www.runsonwhat.com/reverse/adobe-fonts) | Media & UI | 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 |  |
| [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 |  |
| [Google AdSense](https://www.runsonwhat.com/reverse/google-adsense) | Ads & Pixels | Website code |  |
| [Yandex Webmaster](https://www.runsonwhat.com/reverse/yandex) | Marketing | DNS verification records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |

## FAQ

### What tools does HTML Viewer use?

As of October 2026, runsonwhat has found 14 tools at HTML Viewer (html-viewer.org) in public records. Edge & Hosting: Cloudflare. Application: Google Fonts, React and Adobe Fonts. Data & Observability: Google Analytics and Microsoft Clarity. Go-to-market: Google Ads, Google AdSense and Yandex Webmaster. Company Ops: reCAPTCHA. Last checked October 9, 2026.

### What analytics tools does HTML Viewer use?

HTML Viewer uses Google Analytics for analytics, alongside Microsoft Clarity, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on html-viewer.org. Google Analytics is used by 850,234 companies runsonwhat tracks.

### What marketing software does HTML Viewer use?

HTML Viewer uses Yandex Webmaster for marketing, according to runsonwhat (October 2026). runsonwhat found Yandex Webmaster through a DNS verification record for Yandex Webmaster. Yandex Webmaster is used by 16,100 companies runsonwhat tracks.

### Does HTML Viewer use Google Fonts?

Yes. runsonwhat found Google Fonts at HTML Viewer through Google Fonts code on html-viewer.org. Google Fonts is a Media & UI tool used by 789,722 companies runsonwhat tracks.

### How does runsonwhat know what HTML Viewer uses?

runsonwhat reads public records only. Of the 14 tools at HTML Viewer, 10 were found through code on html-viewer.org, 3 through DNS records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and html-viewer.org about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/html-viewer.org (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.