# What does Müller Handels GmbH & Co. KG use?

Müller Handels GmbH & Co. KG (mueller.si) shows public evidence of 8 tools, according to runsonwhat (last checked 2026-11-10).

- Industry: Retail
- Size: 10,000+ employees
- Based in: Ulm, Germany
- Founded: 1953
- LinkedIn: https://www.linkedin.com/company/mueller-holding

## Edge & Hosting

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

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records |  |
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [Have I Been Pwned](https://www.runsonwhat.com/reverse/hibp) | Security & Compliance | DNS verification records |  |
| [Retarus](https://www.runsonwhat.com/reverse/retarus) | Security & Compliance | Email records |  |

## Recent changes at Müller Handels GmbH & Co. KG

- 2026-10-09: started using [Retarus](https://www.runsonwhat.com/reverse/retarus)

## FAQ

### What tools does Müller Handels GmbH & Co. KG use?

As of November 2026, runsonwhat has found 8 tools at Müller Handels GmbH & Co. KG (mueller.si) in public records. Edge & Hosting: Fastly. Company Ops: Microsoft 365, Atlassian and Let's Encrypt. Last checked November 10, 2026.

### What email provider does Müller Handels GmbH & Co. KG use?

Müller Handels GmbH & Co. KG uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 736,660 companies runsonwhat tracks.

### Does Müller Handels GmbH & Co. KG use Atlassian?

Yes. runsonwhat found Atlassian at Müller Handels GmbH & Co. KG through a DNS verification record for Atlassian. Atlassian is a Dev Tools tool used by 69,472 companies runsonwhat tracks.

### Has Müller Handels GmbH & Co. KG changed tools recently?

Yes. On runsonwhat's rechecks, Müller Handels GmbH & Co. KG started using Retarus (latest on October 9, 2026). A change counts only between two checks of mueller.si done the same way.

### Which companies have a tech stack similar to Müller Handels GmbH & Co. KG's?

The companies with the stacks most like Müller Handels GmbH & Co. KG's are Hornbach, RSG Group, Russell A. and Rtech Plastics, according to runsonwhat (November 2026). Each shares 2 to 6 tools with Müller Handels GmbH & Co. KG, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Müller Handels GmbH & Co. KG uses?

runsonwhat reads public records only. Of the 8 tools at Müller Handels GmbH & Co. KG, 6 were found through DNS records, 1 through subdomains that point at the vendor and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and mueller.si about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/mueller.si (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.