CallFasst's tech stack
What does CallFasst use?
CallFasst (callfasst.com) uses at least 11 tools we can see from public records, including Microsoft 365 for email and documents, Google Analytics for analytics and Cloudflare for content delivery. Last checked .
- Industry
- Telecommunications
- Size
- 1,001–5,000 employees
- Based in
- Querétaro, Mexico
- Founded
- 1999
- Company page
- Tools found
- 11
- Categories
- 7
- Layers
- 5 of 5
- Last checked
- Nov 2026
CallFasst's stack, layer by layer
Of 11 tools, 9 came from website code, 1 from DNS verification records and 1 from DNS records. 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
2 tools, where the bytes are served from
CDN & Edge
DNS
Application
4 tools, what the product is built with
Frontend
Data & Observability
2 tools, what they measure and store
Go-to-market
2 tools, how they find and keep customers
Ads & Pixels
Company Ops
1 tool, what the team runs on day to day
Workspace
CallFasst tech stack FAQ
What tools does CallFasst use?
As of November 2026, runsonwhat has found 11 tools at CallFasst (callfasst.com) in public records. Edge & Hosting: Cloudflare and GoDaddy. Application: jQuery, Font Awesome and YouTube. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads and LinkedIn Insight Tag. Company Ops: Microsoft 365. Last checked November 10, 2026.
What email provider does CallFasst use?
CallFasst uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 735,564 companies runsonwhat tracks.
What analytics tools does CallFasst use?
CallFasst uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on callfasst.com. Google Analytics is used by 904,007 companies runsonwhat tracks.
Does CallFasst use jQuery?
Yes. runsonwhat found jQuery at CallFasst through jQuery code on callfasst.com. jQuery is a Frontend tool used by 927,251 companies runsonwhat tracks.
How does runsonwhat know what CallFasst uses?
runsonwhat reads public records only. Of the 11 tools at CallFasst, 9 were found through code on callfasst.com, 2 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and callfasst.com 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.