FS Code's tech stack
What does FS Code use?
FS Code (fs-code.com) uses at least 14 tools we can see from public records, including Microsoft 365 for email and documents, Google Analytics for analytics, Ahrefs for marketing and Cloudflare for content delivery. Last checked .
- Industry
- Software
- Size
- 11–50 employees
- Based in
- Castro Valley, United States
- Founded
- 2018
- Company page
- Tools found
- 14
- Categories
- 8
- Layers
- 5 of 5
- Last checked
- Oct 2026
FS Code'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
1 tool, where the bytes are served from
CDN & Edge
Application
2 tools, what the product is built with
Frontend
Media & UI
Data & Observability
3 tools, what they measure and store
Go-to-market
5 tools, how they find and keep customers
Company Ops
3 tools, what the team runs on day to day
Email Delivery
FS Code tech stack FAQ
What tools does FS Code use?
As of October 2026, runsonwhat has found 14 tools at FS Code (fs-code.com) in public records. Edge & Hosting: Cloudflare. Application: jQuery and Font Awesome. Data & Observability: Google Analytics, Google Tag Manager and PostHog. Go-to-market: Google Ads, Meta Pixel and Ahrefs. Company Ops: Microsoft 365, Google Workspace and Mailjet. Last checked October 23, 2026.
What email provider does FS Code use?
FS Code uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 715,423 companies runsonwhat tracks.
What analytics tools does FS Code use?
FS Code uses Google Analytics for analytics, alongside Google Tag Manager and PostHog, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on fs-code.com. Google Analytics is used by 895,479 companies runsonwhat tracks.
What marketing software does FS Code use?
FS Code uses Ahrefs for marketing, alongside Yandex Webmaster, according to runsonwhat (October 2026). runsonwhat found Ahrefs through a DNS verification record for Ahrefs. Ahrefs is used by 23,875 companies runsonwhat tracks.
Does FS Code use jQuery?
Yes. runsonwhat found jQuery at FS Code through jQuery code on fs-code.com. jQuery is a Frontend tool used by 923,756 companies runsonwhat tracks.
How does runsonwhat know what FS Code uses?
runsonwhat reads public records only. Of the 14 tools at FS Code, 9 were found through code on fs-code.com, 3 through DNS records and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and fs-code.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.