# What does Christensen Kjærulff use?

Christensen Kjærulff (ck.dk) shows public evidence of 10 tools, according to runsonwhat (last checked 2026-10-07).

- Industry: Accounting
- Size: 51–200 employees
- Based in: Copenhagen, Denmark
- Founded: 1948
- LinkedIn: https://www.linkedin.com/company/christensen-kjaerulff

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | DNS records |  |
| [one.com](https://www.runsonwhat.com/reverse/one-com) | Hosting & Cloud | Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [Elementor](https://www.runsonwhat.com/reverse/elementor) | Website & CMS | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [GlobalSign](https://www.runsonwhat.com/reverse/globalsign) | Security & Compliance | DNS verification records |  |

## FAQ

### What tools does Christensen Kjærulff use?

As of October 2026, runsonwhat has found 10 tools at Christensen Kjærulff (ck.dk) in public records. Edge & Hosting: Vercel and one.com. Application: jQuery and Vimeo. Go-to-market: WordPress, Yoast SEO and Elementor. Company Ops: Microsoft 365 and GlobalSign. Last checked October 7, 2026.

### What cloud does Christensen Kjærulff run on?

Christensen Kjærulff uses Vercel for hosting and cloud infrastructure, alongside one.com, according to runsonwhat (October 2026). runsonwhat found Vercel through DNS records that point at Vercel. Vercel is used by 46,658 companies runsonwhat tracks.

### What email provider does Christensen Kjærulff use?

Christensen Kjærulff uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 701,710 companies runsonwhat tracks.

### What is Christensen Kjærulff's website built with?

Christensen Kjærulff uses WordPress for its website, alongside Yoast SEO and Elementor, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on ck.dk. WordPress is used by 582,767 companies runsonwhat tracks.

### Does Christensen Kjærulff use jQuery?

Yes. runsonwhat found jQuery at Christensen Kjærulff through jQuery code on ck.dk. jQuery is a Frontend tool used by 897,845 companies runsonwhat tracks.

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

The companies with the stacks most like Christensen Kjærulff's are LUCU FOOD, L&G Recruitment, YAVICA and Isaaffik - Arctic Gateway, according to runsonwhat (October 2026). Each shares 1 to 9 tools with Christensen Kjærulff, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Christensen Kjærulff uses?

runsonwhat reads public records only. Of the 10 tools at Christensen Kjærulff, 6 were found through code on ck.dk, 4 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and ck.dk about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/ck.dk (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.