# What does Halfspace use?

Halfspace (halfspace.ai) shows public evidence of 16 tools, according to runsonwhat (last checked 2026-11-10).

- Industry: Internet
- Size: 51–200 employees
- Based in: Copenhagen, Denmark
- Founded: 2015
- LinkedIn: https://www.linkedin.com/company/halfspace

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Custom domain |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |
| [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code |  |
| [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records |  |
| [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records |  |
| [SvelteKit](https://www.runsonwhat.com/reverse/sveltekit) | Frontend | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Plausible](https://www.runsonwhat.com/reverse/plausible) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Prismic](https://www.runsonwhat.com/reverse/prismic) | Website & CMS | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, DNS verification records |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [Proofpoint](https://www.runsonwhat.com/reverse/proofpoint) | Security & Compliance | Email records |  |
| [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code |  |
| [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records |  |
| [Notion](https://www.runsonwhat.com/reverse/notion) | Collaboration | DNS verification records |  |
| [Postman](https://www.runsonwhat.com/reverse/postman) | Dev Tools | DNS verification records |  |

## FAQ

### What tools does Halfspace use?

As of November 2026, runsonwhat has found 16 tools at Halfspace (halfspace.ai) in public records. Edge & Hosting: Microsoft Azure. Application: Vimeo, Tailwind CSS and Anthropic. Data & Observability: Plausible. Go-to-market: Prismic. Company Ops: Microsoft 365, Apple Business and Proofpoint. Last checked November 10, 2026.

### What cloud does Halfspace run on?

Halfspace uses Microsoft Azure for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Microsoft Azure through a subdomain that points at Microsoft Azure. Microsoft Azure is used by 51,120 companies runsonwhat tracks.

### What email provider does Halfspace use?

Halfspace uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 739,102 companies runsonwhat tracks.

### What analytics tools does Halfspace use?

Halfspace uses Plausible for analytics, according to runsonwhat (November 2026). runsonwhat found Plausible through Plausible code on halfspace.ai. Plausible is used by 7,375 companies runsonwhat tracks.

### What is Halfspace's website built with?

Halfspace uses Prismic for its website, according to runsonwhat (November 2026). runsonwhat found Prismic through Prismic code on halfspace.ai. Prismic is used by 1,598 companies runsonwhat tracks.

### Does Halfspace use Vimeo?

Yes. runsonwhat found Vimeo at Halfspace through Vimeo code on halfspace.ai. Vimeo is a Media & UI tool used by 457,456 companies runsonwhat tracks.

### Does Halfspace use AI tools?

Yes. runsonwhat has found Anthropic and OpenAI at Halfspace; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Halfspace may use more AI tools than these.

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

The companies with the stacks most like Halfspace's are Rum21, Deskeo, Minute Key and eight&four, according to runsonwhat (November 2026). Each shares 2 to 7 tools with Halfspace, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Halfspace uses?

runsonwhat reads public records only. Of the 16 tools at Halfspace, 7 were found through DNS records, 6 through code on halfspace.ai, 2 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 halfspace.ai about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/halfspace.ai (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.