⚡ Speed
- Fully serverless on Cloudflare's global edge — pages, API and database (D1) run next to your students, with edge caching for lessons and translations.
- Live classroom on Cloudflare RealtimeKit with automatic failover providers, adaptive video quality and a bandwidth-saver mode.
- Pre-class device check, connection diagnostics and 36 ms-class latency indicators right in the classroom header.
🌍 38 languages
- The whole interface, Terms, Privacy and the Help Center are translated into 38 languages by the Global Language Warming Machine and reviewed in the admin Language Audit.
- Lessons, voice-cloned narration and worksheets can be generated in 39 languages; parents receive e-mails in their own language.
🔒 20-point security standard & Vault
- Central API gate on every route, row-level ownership, AES-256-GCM field encryption, bcrypt (cost 12) with transparent upgrade, hardened __Host- cookies, Zod validation, rate limiting, Turnstile everywhere, audit log.
- Private Verification Vault with 60-second signed links; a live 9-point compliance panel and Usage Insights on the CEO dashboard.
- AI scope fence, 1,000-character length guard and guest allowances protect the AI budget.
✨ Teaching & families
- The Forge and Interactive Studio (AI lessons, decks, worksheets, activities), Lingos concierge in every language with voice in/out.
- Student Growth Profile for parents → Parent Priorities for teachers → Smart Captions in the live classroom.
- Teacher handle picker, Community with unique usernames and guidelines, Trusted Institution badges.
Everything above is live on classlingos.com as of June 2026.