# What does Circulum use?

Circulum (circulum.es) shows public evidence of 14 tools, according to runsonwhat (last checked 2026-10-16).

- Industry: Software
- Size: 51–200 employees
- Based in: Madrid, Spain
- Founded: 2018
- LinkedIn: https://www.linkedin.com/company/circulumbymerakitech

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [Font Awesome](https://www.runsonwhat.com/reverse/fontawesome) | Media & UI | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |
| [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [Brevo](https://www.runsonwhat.com/reverse/brevo) | Marketing | DNS verification records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [Bitwarden](https://www.runsonwhat.com/reverse/bitwarden) | Security & Compliance | DNS verification records |  |

## FAQ

### What tools does Circulum use?

As of October 2026, runsonwhat has found 14 tools at Circulum (circulum.es) in public records. Edge & Hosting: Cloudflare. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: WordPress, Google Ads and Yoast SEO. Company Ops: Microsoft 365, Apple Business and Bitwarden. Last checked October 16, 2026.

### What email provider does Circulum use?

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

### What analytics tools does Circulum use?

Circulum uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on circulum.es. Google Analytics is used by 853,379 companies runsonwhat tracks.

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

Circulum uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on circulum.es. WordPress is used by 582,767 companies runsonwhat tracks.

### What marketing software does Circulum use?

Circulum uses Brevo for marketing, according to runsonwhat (October 2026). runsonwhat found Brevo through a DNS verification record for Brevo. Brevo is used by 78,303 companies runsonwhat tracks.

### Does Circulum use jQuery?

Yes. runsonwhat found jQuery at Circulum through jQuery code on circulum.es. jQuery is a Frontend tool used by 897,845 companies runsonwhat tracks.

### How does runsonwhat know what Circulum uses?

runsonwhat reads public records only. Of the 14 tools at Circulum, 8 were found through code on circulum.es, 6 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and circulum.es about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/circulum.es (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.