Speed Pulse
Test download, upload, ping and jitter - and see how much latency climbs when your line is busy (bufferbloat). Get plain-English verdicts for streaming, gaming and video calls.
Detected in your browser for this test only — never stored or shared.
Full Picture: Speed & Stability
Measure download and upload speed, idle latency and jitter - the variation in ping that makes gaming and video calls feel laggy even when speed looks fine.
Bufferbloat Grade
We keep pinging while your connection is saturated, then grade how much extra latency appears under load (A+ to F) - the number that explains why calls stutter during backups.
Real-World Verdicts
Beyond raw numbers: every result is translated into scores for 4K streaming, online gaming, video calls and browsing - each with an explanation of why, and what to fix.
Free & Private
No signup, no app, no tracking. Switch between Mbps and MB/s, export your history to CSV, and share result cards. Everything runs in your browser on any device.
Wondering if your results are good? Read our guides on what a good download speed is, what jitter means, or how much speed you need for 4K streaming.
Speed test for your provider
Comcast Xfinity · AT&T · Verizon Fios · Spectrum · T-Mobile Home Internet · Starlink · Cox — see all providers