# What does PHPUnit use?

PHPUnit (phpunit.de) shows public evidence of 7 tools, according to runsonwhat (last checked 2026-10-31).

- Based in: Germany

## Edge & Hosting

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

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Read the Docs](https://www.runsonwhat.com/reverse/readthedocs) | Support & Docs | Custom domain |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records |  |
| [mailbox.org](https://www.runsonwhat.com/reverse/mailbox-org) | Workspace | Email records |  |

## FAQ

### What tools does PHPUnit use?

As of October 2026, runsonwhat has found 7 tools at PHPUnit (phpunit.de) in public records. Edge & Hosting: Cloudflare. Go-to-market: Read the Docs. Company Ops: Let's Encrypt, Sectigo and DigiCert. Last checked October 31, 2026.

### What email provider does PHPUnit use?

PHPUnit uses mailbox.org for email and office software, according to runsonwhat (October 2026). runsonwhat found mailbox.org through email records that authorize mailbox.org. mailbox.org is used by 301 companies runsonwhat tracks.

### What does PHPUnit use for customer support?

PHPUnit uses Read the Docs for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Read the Docs through a subdomain that points at Read the Docs. Read the Docs is used by 135 companies runsonwhat tracks.

### Does PHPUnit use Cloudflare?

Yes. runsonwhat found Cloudflare at PHPUnit through DNS records that point at Cloudflare and email records. Cloudflare is a CDN & Edge tool used by 713,917 companies runsonwhat tracks.

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

The companies with the stacks most like PHPUnit's are VSC | Vlaams Supercomputer Centrum, Appier Group, openmediavault and Open MPI, according to runsonwhat (October 2026). Each shares 1 to 2 tools with PHPUnit, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what PHPUnit uses?

runsonwhat reads public records only. Of the 7 tools at PHPUnit, 5 were found 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 phpunit.de about monthly.


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