How Fast Is Your Internet?
Click Start to measure your download speed. This test fetches data from Cloudflare and calculates throughput in real-time Mbps — all processed locally in your browser.
This test measures your download speed by streaming a 5 MB payload and calculating throughput in megabits per second (Mbps).
The FCC defines broadband as 25 Mbps download; streaming 4K video requires at least 25 Mbps, while HD video needs 5 Mbps.
What Do Your Results Mean?
| Result | Range | Meaning |
|---|---|---|
| Good | Above 50 Mbps | Fast enough for 4K streaming, large downloads, and video conferencing simultaneously. |
| Warning | 10–50 Mbps | Adequate for HD streaming and browsing but may struggle with multiple simultaneous high-bandwidth activities. |
| Bad | Below 10 Mbps | Slow for modern usage. Check for Wi-Fi interference, VPN overhead, or ISP throttling. |
Common Issues and How to Fix Them
Speed is much lower than your ISP plan
Switch from Wi-Fi to Ethernet, close bandwidth-heavy apps and tabs, and disable VPN. Test at different times to rule out network congestion.
Test stalls or times out
Your connection may be unstable. Check your router, restart your modem, or try from a different network.