# What does Puzzlist use?

Puzzlist (puzzlist.com) shows public evidence of 14 tools, according to runsonwhat (last checked 2026-10-20).

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Ad Manager](https://www.runsonwhat.com/reverse/google-ad-manager) | Ads & Pixels | Website config |  |
| [Microsoft Xandr](https://www.runsonwhat.com/reverse/xandr) | Ads & Pixels | Website config |  |
| [Criteo](https://www.runsonwhat.com/reverse/criteo) | Ads & Pixels | Website config |  |
| [Amazon Publisher Services](https://www.runsonwhat.com/reverse/amazon-publisher-services) | Ads & Pixels | Website config |  |
| [Media.net](https://www.runsonwhat.com/reverse/media-net) | Ads & Pixels | Website config |  |
| [Index Exchange](https://www.runsonwhat.com/reverse/index-exchange) | Ads & Pixels | Website config |  |
| [Sharethrough](https://www.runsonwhat.com/reverse/sharethrough) | Ads & Pixels | Website config |  |
| [Teads](https://www.runsonwhat.com/reverse/teads) | Ads & Pixels | Website config |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code |  |

## FAQ

### What tools does Puzzlist use?

As of October 2026, runsonwhat has found 14 tools at Puzzlist (puzzlist.com) in public records. Edge & Hosting: Cloudflare and Amazon Web Services. Application: React. Data & Observability: Google Analytics. Go-to-market: Google Ad Manager, Microsoft Xandr and Criteo. Company Ops: Google Workspace. Last checked October 20, 2026.

### What cloud does Puzzlist run on?

Puzzlist uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services and code on puzzlist.com. Amazon Web Services is used by 146,108 companies runsonwhat tracks.

### What email provider does Puzzlist use?

Puzzlist 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 puzzlist.com. Google Workspace is used by 406,181 companies runsonwhat tracks.

### What analytics tools does Puzzlist use?

Puzzlist uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on puzzlist.com. Google Analytics is used by 891,136 companies runsonwhat tracks.

### Does Puzzlist use Cloudflare?

Yes. runsonwhat found Cloudflare at Puzzlist through DNS records that point at Cloudflare and code on puzzlist.com. Cloudflare is a CDN & Edge tool used by 709,767 companies runsonwhat tracks.

### How does runsonwhat know what Puzzlist uses?

runsonwhat reads public records only. Of the 14 tools at Puzzlist, 8 were found through website configuration files, 2 through code on puzzlist.com, 2 through DNS records, 1 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 puzzlist.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/puzzlist.com (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.