What does Celcat use?

As of October 2026, runsonwhat has found 21 tools at Celcat (celcat.fr) in public records. Edge & Hosting: Amazon Web Services and Amazon Route 53. Application: jQuery, Google Fonts and Anthropic. Go-to-market: WordPress, Yoast SEO and Mailchimp. Company Ops: Microsoft 365, reCAPTCHA and Atlassian. Last checked October 31, 2026.

Celcat uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on celcat.fr. Amazon Web Services is used by 146,185 companies runsonwhat tracks.

The sales tools runsonwhat has found at Celcat are ZoomInfo and Salesloft (October 2026); no CRM shows up in Celcat's public records. runsonwhat found ZoomInfo through ZoomInfo code on celcat.fr.

Celcat 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 715,456 companies runsonwhat tracks.

Celcat uses Freshdesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Freshdesk through a subdomain that points at Freshdesk and email records. Freshdesk is used by 12,612 companies runsonwhat tracks.

Celcat uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on celcat.fr. WordPress is used by 603,528 companies runsonwhat tracks.

Yes. runsonwhat found jQuery at Celcat through jQuery code on celcat.fr. jQuery is a Frontend tool used by 925,460 companies runsonwhat tracks.

Yes. runsonwhat has found Anthropic and OpenAI at Celcat; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Celcat may use more AI tools than these.

Yes. On runsonwhat's rechecks, Celcat started using Bitwarden and MongoDB Atlas (latest on October 31, 2026). A change counts only between two checks of celcat.fr done the same way.

The companies with the stacks most like Celcat's are Thompson Street Capital Partners, Prodrive Technologies (Netherlands), Red Bull New York and Zoom Communications, according to runsonwhat (October 2026). Each shares 5 to 9 tools with Celcat, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

runsonwhat reads public records only. Of the 21 tools at Celcat, 10 were found through DNS records, 8 through code on celcat.fr, 2 through email 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 celcat.fr about monthly.