Broadband Speed Test
Check your download speed, upload speed and ping on a live speedometer dial — right in your browser, no app needed.
Multi-stream opens several connections at once to make fuller use of your line, showing more of your total available bandwidth.
Running lots of tests back to back? The Cloudflare test server may briefly rate-limit you, which can make a result look lower than usual — that's the test server temporarily slowing you down, not your actual broadband. If a result seems off, wait a minute or two and test again.
What do the numbers mean?
Download is how fast you can pull data from the internet — streaming, browsing and downloads. Upload is how fast you can send data out — video calls, backups and posting content. Ping (latency) is the delay before data starts moving, measured in milliseconds; lower is better, and it matters most for gaming and video calls.
As a rough guide, UK "superfast" broadband is 30 Mbps or more, and "ultrafast" full-fibre packages run from 100 Mbps into the hundreds. For 4K streaming on several devices at once, aim for 50 Mbps or more. A ping under 20 ms is excellent; over 100 ms may feel sluggish for real-time apps.
Single vs multi-stream: a single connection reflects the speed of one download or file transfer, while multi-stream opens several connections at once to make fuller use of your line and show more of your total available bandwidth. You can also switch the readout between megabits (Mbps, the usual broadband unit) and megabytes (MB/s, which is Mbps ÷ 8).
This tool is for general guidance. A speed test measures the connection between this device and the test server at one moment in time; your experience can vary with Wi-Fi, network contention and the servers you connect to.