DOWNLOAD
—Mbps
CONNECTION DIAGNOSTICS
Know your connection.
Measure your browser’s path to the Cloudflare network, then take a closer look at the connection you’re on.
01 / PERFORMANCE
Internet speed test
UPLOAD
—Mbps
IDLE LATENCY
—ms
DOWNLOAD LOADED
—ms
UPLOAD LOADED
—ms
JITTER · IDLE
—ms
Ready when you are
01 WARM-UP02 LATENCY03 DOWNLOAD04 UPLOAD
LIVE THROUGHPUTMbps
Download Upload
Testing transfers data. Standard mode transfers up to 3.3125 MiB total; lower-data mode up to 0.9375 MiB. Choose a 45- or 90-second limit. Actual use may be lower if cancelled. Metered connections may incur charges.
How this test works
Your browser measures requests to this site’s same-origin Cloudflare Worker. It performs a small download and upload warm-up (excluded from speed metrics but included in data usage), then measures bounded payloads, counts bytes actually transferred, and times them with a monotonic browser clock. This is browser-to-Cloudflare network performance—not a guaranteed measurement of your ISP plan or a local wired-link maximum.
Idle latency is the median of seven request round trips. Jitter is the average absolute difference between consecutive idle samples. Loaded latency is the median of successful ping samples taken during each transfer phase. Throughput is the median of each phase’s three measured payload rates; each rate is bits received or accepted divided by the browser’s elapsed request time. Failed requests are unavailable samples, not packet-loss evidence.
02 / SESSION DETAILS
Your connection
Information observed for this request. Approximate IP location can be affected by VPNs and proxies.
Loading connection details…
Browser and network details
Browser and OS labels are inferred from the user-agent and may not be exact. Browser-reported connection estimates are experimental and separate from measured results.
Approximate coordinates
IP-derived location is approximate—not precise device location. VPNs and proxies can change what location appears.
Privacy by design. Test results stay in this browser unless you explicitly export them. We don’t use accounts, tracking cookies, analytics, or third-party geolocation. Cloudflare may process and log requests under its platform policies; operators should review Worker observability and account logging settings.