# What does Callida use?

Callida (callida.cz) shows public evidence of 15 tools, according to runsonwhat (last checked 2026-10-11).

- Based in: Czechia
- LinkedIn: https://www.linkedin.com/company/callida-software

## Edge & Hosting

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

## 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 |  |
| [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records, Website code |  |
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [SparkPost](https://www.runsonwhat.com/reverse/sparkpost) | Email Delivery | Email records, Website code |  |

## FAQ

### What tools does Callida use?

As of October 2026, runsonwhat has found 15 tools at Callida (callida.cz) in public records. Edge & Hosting: Cloudflare and Microsoft Azure. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads and LinkedIn Insight Tag. Company Ops: Microsoft 365, reCAPTCHA and SendGrid. Last checked October 11, 2026.

### What cloud does Callida run on?

Callida uses Microsoft Azure for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Microsoft Azure through a subdomain that points at Microsoft Azure. Microsoft Azure is used by 45,221 companies runsonwhat tracks.

### What email provider does Callida use?

Callida 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 and email records. Microsoft 365 is used by 700,569 companies runsonwhat tracks.

### What analytics tools does Callida use?

Callida uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on callida.cz. Google Analytics is used by 849,841 companies runsonwhat tracks.

### Does Callida use jQuery?

Yes. runsonwhat found jQuery at Callida through jQuery code on callida.cz. jQuery is a Frontend tool used by 895,678 companies runsonwhat tracks.

### How does runsonwhat know what Callida uses?

runsonwhat reads public records only. Of the 15 tools at Callida, 11 were found through code on callida.cz, 2 through email records, 1 through DNS 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 callida.cz about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/callida.cz (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.