Extreme Fit's tech stack
What does Extreme Fit use?
Extreme Fit (extremefitusa.com) uses at least 12 tools we can see from public records, including Microsoft 365 for email and documents, PayPal for payments, Shopify for its website and Klaviyo for marketing. Last checked .
- Industry
- Health, Wellness and Fitness
- Size
- 11–50 employees
- Based in
- Mount Prospect, United States
- Founded
- 2017
- Company page
- Tools found
- 12
- Categories
- 11
- Layers
- 4 of 5
- Last checked
- Oct 2026
Extreme Fit'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
2 tools, where the bytes are served from
CDN & Edge
Application
4 tools, what the product is built with
Go-to-market
3 tools, how they find and keep customers
Company Ops
3 tools, what the team runs on day to day
Extreme Fit tech stack FAQ
What tools does Extreme Fit use?
As of October 2026, runsonwhat has found 12 tools at Extreme Fit (extremefitusa.com) in public records. Edge & Hosting: Cloudflare and GoDaddy. Application: Google Fonts, Vimeo and PayPal. Go-to-market: Meta Pixel, Shopify and Klaviyo. Company Ops: Microsoft 365, SendGrid and Let's Encrypt. Last checked October 23, 2026.
What email provider does Extreme Fit use?
Extreme Fit uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on extremefitusa.com. Microsoft 365 is used by 715,482 companies runsonwhat tracks.
What payment provider does Extreme Fit use?
Extreme Fit uses PayPal for payments and billing, according to runsonwhat (October 2026). runsonwhat found PayPal through PayPal code on extremefitusa.com. PayPal is used by 34,992 companies runsonwhat tracks.
What is Extreme Fit's website built with?
Extreme Fit uses Shopify for its website, according to runsonwhat (October 2026). runsonwhat found Shopify through a subdomain that points at Shopify and DNS records. Shopify is used by 60,132 companies runsonwhat tracks.
What marketing software does Extreme Fit use?
Extreme Fit uses Klaviyo for marketing, according to runsonwhat (October 2026). runsonwhat found Klaviyo through a DNS verification record for Klaviyo. Klaviyo is used by 35,685 companies runsonwhat tracks.
Does Extreme Fit use Google Fonts?
Yes. runsonwhat found Google Fonts at Extreme Fit through Google Fonts code on extremefitusa.com. Google Fonts is a Media & UI tool used by 818,840 companies runsonwhat tracks.
How does runsonwhat know what Extreme Fit uses?
runsonwhat reads public records only. Of the 12 tools at Extreme Fit, 5 were found through code on extremefitusa.com, 3 through subdomains that point at the vendor, 2 through DNS records, 1 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and extremefitusa.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.