F+U's tech stack
What does F+U use?
F+U (fuu.de) uses at least 11 tools we can see from public records, including Microsoft 365 for email and documents, Google Analytics for analytics, Ahrefs for marketing and Microsoft Entra ID for sign-in. Last checked .
- Industry
- Education Management
- Size
- 201–1,000 employees
- Based in
- Heidelberg, Germany
- Founded
- 1980
- Company page
- Tools found
- 11
- Categories
- 6
- Layers
- 4 of 5
- Last checked
- Oct 2026
F+U'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.
Application
1 tool, what the product is built with
Auth & Identity
Data & Observability
3 tools, what they measure and store
Go-to-market
5 tools, how they find and keep customers
Ads & Pixels
Company Ops
2 tools, what the team runs on day to day
Workspace
Collaboration
F+U tech stack FAQ
What tools does F+U use?
As of October 2026, runsonwhat has found 11 tools at F+U (fuu.de) in public records. Application: Microsoft Entra ID. Data & Observability: Google Analytics, Google Tag Manager and Hotjar. Go-to-market: Google Ads, Meta Pixel and Ahrefs. Company Ops: Microsoft 365 and Adobe. Last checked October 7, 2026.
What email provider does F+U use?
F+U 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 a DNS verification record. Microsoft 365 is used by 697,027 companies runsonwhat tracks.
What analytics tools does F+U use?
F+U uses Google Analytics for analytics, alongside Google Tag Manager and Hotjar, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on fuu.de. Google Analytics is used by 845,367 companies runsonwhat tracks.
What marketing software does F+U use?
F+U uses Ahrefs for marketing, alongside CleverReach, according to runsonwhat (October 2026). runsonwhat found Ahrefs through a DNS verification record for Ahrefs. Ahrefs is used by 22,826 companies runsonwhat tracks.
What does F+U use for login and identity?
F+U uses Microsoft Entra ID for sign-in and identity, according to runsonwhat (October 2026). runsonwhat found Microsoft Entra ID through a subdomain that points at Microsoft Entra ID. Microsoft Entra ID is used by 3,079 companies runsonwhat tracks.
Does F+U use Google Ads?
Yes. runsonwhat found Google Ads at F+U through Google Ads code on fuu.de. Google Ads is a Ads & Pixels tool used by 450,014 companies runsonwhat tracks.
How does runsonwhat know what F+U uses?
runsonwhat reads public records only. Of the 11 tools at F+U, 4 were found through code on fuu.de, 4 through DNS records, 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 fuu.de 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.