# What does CELSO | Professional Websites, App Development, DS/ML use?

CELSO | Professional Websites, App Development, DS/ML (celso.ro) shows public evidence of 12 tools, according to runsonwhat (last checked 2026-10-30).

- Industry: IT Services
- Size: 11–50 employees
- Based in: Sibiu, Romania
- Founded: 2018
- LinkedIn: https://www.linkedin.com/company/celsoro

## 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 |  |
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |
| [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code |  |

## Data & Observability

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

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [WhatsApp Business](https://www.runsonwhat.com/reverse/whatsapp) | Support & Docs | Website code |  |
| [Rank Math](https://www.runsonwhat.com/reverse/rankmath) | Website & CMS | Website code |  |
| [Ahrefs](https://www.runsonwhat.com/reverse/ahrefs) | Marketing | Website code |  |

## FAQ

### What tools does CELSO | Professional Websites, App Development, DS/ML use?

As of October 2026, runsonwhat has found 12 tools at CELSO | Professional Websites, App Development, DS/ML (celso.ro) in public records. Edge & Hosting: Cloudflare. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics and Contentsquare. Go-to-market: WordPress, WhatsApp Business and Rank Math. Last checked October 30, 2026.

### What does CELSO | Professional Websites, App Development, DS/ML use for customer support?

CELSO | Professional Websites, App Development, DS/ML uses WhatsApp Business for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found WhatsApp Business through WhatsApp Business code on celso.ro. WhatsApp Business is used by 136,817 companies runsonwhat tracks.

### What analytics tools does CELSO | Professional Websites, App Development, DS/ML use?

CELSO | Professional Websites, App Development, DS/ML uses Google Analytics for analytics, alongside Contentsquare, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on celso.ro. Google Analytics is used by 894,142 companies runsonwhat tracks.

### What is CELSO | Professional Websites, App Development, DS/ML's website built with?

CELSO | Professional Websites, App Development, DS/ML uses WordPress for its website, alongside Rank Math, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on celso.ro. WordPress is used by 602,158 companies runsonwhat tracks.

### What marketing software does CELSO | Professional Websites, App Development, DS/ML use?

CELSO | Professional Websites, App Development, DS/ML uses Ahrefs for marketing, according to runsonwhat (October 2026). runsonwhat found Ahrefs through Ahrefs code on celso.ro. Ahrefs is used by 23,878 companies runsonwhat tracks.

### Does CELSO | Professional Websites, App Development, DS/ML use jQuery?

Yes. runsonwhat found jQuery at CELSO | Professional Websites, App Development, DS/ML through jQuery code on celso.ro. jQuery is a Frontend tool used by 923,296 companies runsonwhat tracks.

### How does runsonwhat know what CELSO | Professional Websites, App Development, DS/ML uses?

runsonwhat reads public records only. Of the 12 tools at CELSO | Professional Websites, App Development, DS/ML, 11 were found through code on celso.ro, 1 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and celso.ro about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/celso.ro (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.