# What does Yahoo use?

Yahoo (yahoo.com.tw) shows public evidence of 19 tools, according to runsonwhat (last checked 2026-11-09).

- Based in: Taiwan

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | 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 |  |
| [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 |  |
| [Index Exchange](https://www.runsonwhat.com/reverse/index-exchange) | Ads & Pixels | Website config |  |
| [Media.net](https://www.runsonwhat.com/reverse/media-net) | Ads & Pixels | Website config |  |
| [Sovrn](https://www.runsonwhat.com/reverse/sovrn) | 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 |  |
| [Taboola](https://www.runsonwhat.com/reverse/taboola) | Ads & Pixels | Website code, Website config |  |
| [Teads](https://www.runsonwhat.com/reverse/teads) | Ads & Pixels | Website config |  |
| [Outbrain](https://www.runsonwhat.com/reverse/outbrain) | Ads & Pixels | Website config |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [GlobalSign](https://www.runsonwhat.com/reverse/globalsign) | Security & Compliance | DNS records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Agari](https://www.runsonwhat.com/reverse/agari) | Security & Compliance | Email records |  |

## FAQ

### What tools does Yahoo use?

As of November 2026, runsonwhat has found 19 tools at Yahoo (yahoo.com.tw) in public records. Application: Next.js. Go-to-market: Google Ad Manager, Microsoft Xandr and Criteo. Company Ops: GlobalSign, DigiCert and Agari. Last checked November 9, 2026.

### Does Yahoo use Next.js?

Yes. runsonwhat found Next.js at Yahoo through Next.js code on yahoo.com.tw. Next.js is a Frontend tool used by 70,038 companies runsonwhat tracks.

### Which companies have a tech stack similar to Yahoo's?

The companies with the stacks most like Yahoo's are CLA Global: International Accounting Network, Taiwan Johnson Controls, Florida Sheriffs Association and TaskUs, according to runsonwhat (November 2026). Each shares 1 to 2 tools with Yahoo, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Yahoo uses?

runsonwhat reads public records only. Of the 19 tools at Yahoo, 13 were found through website configuration files, 3 through code on yahoo.com.tw, 2 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 yahoo.com.tw about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/yahoo.com.tw (updated November 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.