Connection check
Measure the quality of your current connection.
Run a short, limited test for latency, download throughput, and upload throughput. The test uses at most 16 MiB in each direction.
Browser test
Network quality
About the result
A quick estimate, not a line-rate benchmark
Browser scheduling, Wi-Fi conditions, and nearby traffic can affect the result. For a useful comparison, repeat the test from the same device and location.
How it works
Small tests, useful signals
The download is a 16 MiB sample; the upload is discarded after measurement. Tests are limited to avoid impacting other visitors. Read more about the test.
Public looking glass
Stockholm, Sweden
Static test files are available for sustained route, peering, and transfer checks from this location. Files are sent without compression or dynamic generation.
100 MB test file
Short transfer and routing check
100 MB
1 GB test file
Long-duration stability check
1 GB
Transfers are rate-limited and may be interrupted during maintenance. Automated parallel downloading is not permitted.