Callendar's tech stack
What does Callendar use?
Callendar (callendar.tech) uses at least 10 tools we can see from public records, including Google Cloud for hosting, Microsoft 365 for email and documents, Wix for its website and Sentry for monitoring. Last checked .
- Industry
- Professional, Scientific and Technical Activities
- Based in
- France
- Founded
- 2019
- Company page
- Tools found
- 10
- Categories
- 9
- Layers
- 5 of 5
- Last checked
- Oct 2026
Callendar's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
3 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
3 tools, what the product is built with
Data & Observability
1 tool, what they measure and store
Monitoring
Go-to-market
2 tools, how they find and keep customers
Website & CMS
Marketing
Company Ops
1 tool, what the team runs on day to day
Workspace
Callendar tech stack FAQ
What tools does Callendar use?
As of October 2026, runsonwhat has found 10 tools at Callendar (callendar.tech) in public records. Edge & Hosting: Google Cloud, Fastly and OVHcloud. Application: GSAP and React. Data & Observability: Sentry. Go-to-market: Wix. Company Ops: Microsoft 365. Last checked October 11, 2026.
What cloud does Callendar run on?
Callendar uses Google Cloud for hosting and cloud infrastructure, alongside OVHcloud, according to runsonwhat (October 2026). runsonwhat found Google Cloud through Google Cloud code on callendar.tech. Google Cloud is used by 74,748 companies runsonwhat tracks.
What email provider does Callendar use?
Callendar 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 697,432 companies runsonwhat tracks.
What is Callendar's website built with?
Callendar uses Wix for its website, according to runsonwhat (October 2026). runsonwhat found Wix through a subdomain that points at Wix and code on callendar.tech. Wix is used by 50,789 companies runsonwhat tracks.
What monitoring tools does Callendar use?
Callendar uses Sentry for monitoring, according to runsonwhat (October 2026). runsonwhat found Sentry through Sentry code on callendar.tech. Sentry is used by 76,675 companies runsonwhat tracks.
Does Callendar use GSAP?
Yes. runsonwhat found GSAP at Callendar through GSAP code on callendar.tech. GSAP is a Media & UI tool used by 198,096 companies runsonwhat tracks.
How does runsonwhat know what Callendar uses?
runsonwhat reads public records only. Of the 10 tools at Callendar, 6 were found through code on callendar.tech, 2 through subdomains that point at the vendor, 1 through DNS records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and callendar.tech about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.