Why Tej?
Most speed tests use compressible data that ISPs can optimize, giving inflated results. Tej uses incompressible random data for honest measurements.
| Feature |
Tej |
Ookla |
Fast.com |
| Incompressible data |
✓ |
✗ |
✗ |
| Open source |
✓ |
✗ |
✗ |
| No telemetry |
✓ |
✗ |
✗ |
| Lightweight |
~8KB |
~200MB app |
Web only |
How Tej is different
- Incompressible data: Uses random bytes that can't be compressed by ISP optimization
- Multiple parallel connections: Simulates real-world usage patterns
- Comprehensive metrics: Download, upload, latency, jitter, and packet loss
- Cloudflare edge: Tests against 300+ global locations for representative results