# What does check4d.org use?

check4d.org (check4d.org) shows public evidence of 19 tools, according to runsonwhat (last checked 2026-10-24).

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | 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 code, Website config |  |
| [Microsoft Xandr](https://www.runsonwhat.com/reverse/xandr) | Ads & Pixels | Website config |  |
| [Google AdSense](https://www.runsonwhat.com/reverse/google-adsense) | Ads & Pixels | Website code |  |
| [Criteo](https://www.runsonwhat.com/reverse/criteo) | Ads & Pixels | Website config |  |
| [Magnite](https://www.runsonwhat.com/reverse/magnite) | Ads & Pixels | Website config |  |
| [PubMatic](https://www.runsonwhat.com/reverse/pubmatic) | Ads & Pixels | Website config |  |
| [OpenX](https://www.runsonwhat.com/reverse/openx) | 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 |  |
| [Sovrn](https://www.runsonwhat.com/reverse/sovrn) | Ads & Pixels | Website config |  |
| [Taboola](https://www.runsonwhat.com/reverse/taboola) | Ads & Pixels | Website config |  |
| [TripleLift](https://www.runsonwhat.com/reverse/triplelift) | 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 |  |
| [Outbrain](https://www.runsonwhat.com/reverse/outbrain) | Ads & Pixels | Website config |  |

## FAQ

### What tools does check4d.org use?

As of October 2026, runsonwhat has found 19 tools at check4d.org (check4d.org) in public records. Edge & Hosting: Cloudflare. Application: jQuery. Data & Observability: Google Analytics. Go-to-market: Google Ad Manager, Microsoft Xandr and Google AdSense. Last checked October 24, 2026.

### What analytics tools does check4d.org use?

check4d.org uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on check4d.org. Google Analytics is used by 879,793 companies runsonwhat tracks.

### Does check4d.org use jQuery?

Yes. runsonwhat found jQuery at check4d.org through jQuery code on check4d.org. jQuery is a Frontend tool used by 915,598 companies runsonwhat tracks.

### How does runsonwhat know what check4d.org uses?

runsonwhat reads public records only. Of the 19 tools at check4d.org, 14 were found through website configuration files, 4 through code on check4d.org and 1 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and check4d.org about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/check4d.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.