Download—Mbps
Cloudflare edge testPerformance, not guesswork
How to see what is using your internet on Windows
Background traffic can consume bandwidth or create latency spikes without being obvious. Windows includes tools to identify the process.
DownloadUploadPingJitterLoss
Upload—Mbps
Ping—ms
Jitter—ms
Packet loss—%
WINDOWS BANDWIDTH CHECK
Find the process before disabling services or changing network settings.
Use Task Manager for a quick live view and Resource Monitor for more detail. Then decide whether the traffic is expected—such as cloud sync or a game update—before stopping it.
Task Manager
Open Task Manager, view Processes and sort by the Network column to see which apps are currently transferring data.
Resource Monitor
Open Resource Monitor and use the Network tab for per-process connections, send/receive rates and active TCP connections.
Windows Data Usage
Settings can show historical data usage by app, which is useful when the heavy traffic is not happening at the exact moment you check.
Pause launchers and cloud sync
Steam, Battle.net, OneDrive and other clients can update in the background. Pause them when testing gaming latency.
Do not kill unknown system processes
Identify a process before ending it. Some Windows networking and security services are necessary.
Retest after closing the culprit
If ping, jitter or download speed improves with a background transfer paused, you have evidence rather than a guess.