# What does GMX use?

GMX (gmx.de) shows public evidence of 17 tools, according to runsonwhat (last checked 2026-11-08).

- Industry: Logistics and Supply Chain
- Size: 1–10 employees
- Based in: Donzdorf, Germany
- LinkedIn: https://www.linkedin.com/company/anwaltskanzlei-jung-&-kollegen

## 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 code |  |
| [Magnite](https://www.runsonwhat.com/reverse/magnite) | Ads & Pixels | Website config |  |
| [PubMatic](https://www.runsonwhat.com/reverse/pubmatic) | Ads & Pixels | Website config |  |
| [Trustpilot](https://www.runsonwhat.com/reverse/trustpilot) | Marketing | DNS verification records |  |
| [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 |  |
| [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 config |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Telekom Security](https://www.runsonwhat.com/reverse/telesec) | Security & Compliance | DNS records |  |

## FAQ

### What tools does GMX use?

As of November 2026, runsonwhat has found 17 tools at GMX (gmx.de) in public records. Go-to-market: Google Ad Manager, Microsoft Xandr and Criteo. Company Ops: Sectigo, DigiCert and Telekom Security. Last checked November 8, 2026.

### What marketing software does GMX use?

GMX uses Trustpilot for marketing, according to runsonwhat (November 2026). runsonwhat found Trustpilot through a DNS verification record for Trustpilot. Trustpilot is used by 16,422 companies runsonwhat tracks.

### Does GMX use Google Ad Manager?

Yes. runsonwhat found Google Ad Manager at GMX through gmx.de's configuration files. Google Ad Manager is a Ads & Pixels tool used by 50,265 companies runsonwhat tracks.

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

The companies with the stacks most like GMX's are LOTTO Berlin, Hannoversche Beteiligungsgesellschaft, KAESER KOMPRESSOREN and Bundeswehr, according to runsonwhat (November 2026). Each shares 1 to 2 tools with GMX, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what GMX uses?

runsonwhat reads public records only. Of the 17 tools at GMX, 11 were found through website configuration files, 5 through DNS records and 1 through code on gmx.de. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and gmx.de about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/gmx.de (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.