Internet diagnostic tool
Upload speed controls how well your connection sends video, voice, files, livestreams, and remote-work data. Low upload is one of the most common reasons calls look blurry or unstable.
Run a quick browser-based diagnostic for calls, gaming, streaming, VPN, and remote work. Verdicts appear before raw technical numbers.
MVP note: latency, jitter, packet loss, and speed are browser-based estimates. Fetch failures/timeouts approximate packet loss and may be affected by blockers, CORS, or third-party test endpoints.
Upload speed controls how well your connection sends video, voice, files, livestreams, and remote-work data. Low upload is one of the most common reasons calls look blurry or unstable.
For HD calls, aim for at least 3 Mbps upload. Livestreaming, cloud backups, and multiple users may need much more.
Many broadband plans are asymmetric, meaning download capacity is much higher than upload capacity.
Pause cloud backups, stop large uploads, use Ethernet, upgrade your plan, or switch providers if upload remains low.
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