What powers icf.college?
Last seen Aug 2026 · 16 technologies across 9 categories
CDN
Font scripts
Google Font API
since Dec 2023
JavaScript libraries
LMS
Thinkific
since Dec 2023
Miscellaneous
Open Graph
since Dec 2023
Programming languages
Ruby
since Dec 2023
Reverse proxies
Envoy
since Apr 2026
Security
Web frameworks
Ruby on Rails
since Dec 2023
AI Crawlers
robots.txt could not be read at the last check (Aug 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not found
- ai.txt not found
AI Crawlers
Policy unknown
Audience
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.74 / 10 · ranked #18,053,188 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- CDN: Cloudflare
- Weight: 1.8 MB · 34 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Full technology history →
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Recent changes
- detected Envoy Apr 2026
- dropped Cart Functionality Jan 2026
- detected Cart Functionality Nov 2025