# What does Koesio use?

Koesio (clsystems.fr) shows public evidence of 19 tools, according to runsonwhat (last checked 2026-11-13).

- Industry: Telecommunications
- Size: 11–50 employees
- Based in: Villemomble, France
- Founded: 2009
- LinkedIn: https://www.linkedin.com/company/clsystems-fr

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [OVHcloud](https://www.runsonwhat.com/reverse/ovh) | Hosting & Cloud | Email records, DNS records |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Font Awesome](https://www.runsonwhat.com/reverse/fontawesome) | Media & UI | Website code |  |
| [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code |  |
| [Google Maps](https://www.runsonwhat.com/reverse/google-maps) | Media & UI | Website code |  |
| [Adobe Fonts](https://www.runsonwhat.com/reverse/adobe-fonts) | Media & UI | Website code |  |
| [Microsoft Entra ID](https://www.runsonwhat.com/reverse/entra-id) | Auth & Identity | Custom domain |  |

## 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 |  |
| [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code |  |
| [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code |  |
| [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | Custom domain, DNS verification records, Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records |  |
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |
| [dmarcian](https://www.runsonwhat.com/reverse/dmarcian) | Security & Compliance | Email records |  |

## FAQ

### What tools does Koesio use?

As of November 2026, runsonwhat has found 19 tools at Koesio (clsystems.fr) in public records. Edge & Hosting: OVHcloud. Application: jQuery, Font Awesome and YouTube. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: WordPress, Google Ads and Meta Pixel. Company Ops: Microsoft 365, reCAPTCHA and dmarcian. Last checked November 13, 2026.

### What cloud does Koesio run on?

Koesio uses OVHcloud for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found OVHcloud through email records that authorize OVHcloud and DNS records. OVHcloud is used by 27,798 companies runsonwhat tracks.

### What CRM does Koesio use?

Koesio uses Zoho for its CRM, according to runsonwhat (November 2026). runsonwhat found Zoho through a subdomain that points at Zoho and a DNS verification record. Zoho is used by 65,630 companies runsonwhat tracks.

### What email provider does Koesio use?

Koesio uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 737,894 companies runsonwhat tracks.

### What analytics tools does Koesio use?

Koesio uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on clsystems.fr. Google Analytics is used by 904,839 companies runsonwhat tracks.

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

Koesio uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on clsystems.fr. WordPress is used by 607,484 companies runsonwhat tracks.

### Does Koesio use jQuery?

Yes. runsonwhat found jQuery at Koesio through jQuery code on clsystems.fr. jQuery is a Frontend tool used by 927,808 companies runsonwhat tracks.

### How does runsonwhat know what Koesio uses?

runsonwhat reads public records only. Of the 19 tools at Koesio, 14 were found through code on clsystems.fr, 3 through email records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and clsystems.fr about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/clsystems.fr (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.