What powers flashcards.world?
Last seen Jun 2026 · 17 technologies across 11 categories
Advertising
Google AdSense
since Jun 2026
Analytics
Cloudflare Browser Insights
since Sep 2023
CDN
Cloudflare
since Feb 2022
Databases
Firebase
since Sep 2022
Development
Turbopack
since Jan 2026
JavaScript frameworks
Miscellaneous
Performance
Priority Hints
since Jan 2026
Programming languages
Node.js
since Mar 2022
Security
Webmail
Proton Mail
since Jul 2025
Audience
- 68% desktop
- 29% phone
- 3% tablet
Vietnam
Philippines
Egypt
Peru
New Zealand
Algeria
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.14 / 10 · ranked #1,355,431 of all domains
21 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 125 ms |
| CLS | 0.2 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare, Fastly
- Weight: 0.7 MB · 43 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| flashcards.world | 14 |
| teachers.flashcards.world | 12 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Google AdSense Jun 2026
- detected reCAPTCHA Jun 2026
- dropped Cloudflare Rocket Loader Mar 2026
- detected Cloudflare Rocket Loader Jan 2026
- detected Priority Hints Jan 2026