Measure your uplink on its own terms — the direction that decides whether video calls, backups and file sharing actually work.
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This test measures upload separately from download, because on most Indian plans they are nowhere near equal. It reports sustained upload throughput, how much of it survives when the link is busy, and whether the uplink is the reason calls break up while pages still load normally.
Download gets all the attention because it is the number on the plan. But almost everything that feels broken during a working day is upload: your voice in a meeting, your camera freezing while everyone else looks fine, a file that will not send, a backup that never finishes. Those all travel up, and the uplink is usually the narrower pipe by a wide margin.
Indian consumer connections are asymmetric on purpose. A 100 Mbps fibre plan commonly gives 20–50 Mbps up; mobile plans are more lopsided still, and 5G uplink can be far below what the download figure suggests. So a link can test beautifully and still be unable to hold a two-way call.
This page measures the uplink on its own, without inferring it from the download result. That distinction matters more than it sounds — see the method below.
Most upload tests fire a fixed number of parallel streams sized from the download speed. On a fast-down, slow-up line — which describes the majority of Indian broadband and nearly all mobile data — that floods a narrow uplink, the streams contend with each other, and the result comes back far below the line's real capacity or takes minutes to finish. Signalyzr gauges the uplink first and sizes the test to it, so the number reflects your connection rather than the test's own congestion. On a genuinely fast symmetric link the full-strength test still runs unchanged.
Because it was sold that way. Consumer broadband and mobile plans allocate most capacity to download on the assumption that people consume more than they send. A 10:1 ratio is normal in India and is not in itself a fault. It becomes a fault when the uplink is too small for the work you actually do on it.
A call needs both directions at once, and your camera goes up. If the uplink is saturated or queueing, other people see you freeze while your view of them stays perfect — which is why the problem is so often misread as being at the other end. Run this test and check the latency-while-uploading figure, not just the throughput.
Roughly 1 Mbps for a voice call, 3–4 Mbps for a 1080p video call, and 6 Mbps or more if you screen-share with your camera on. Cloud backup will use everything you give it, so it is worth scheduling rather than sizing for.
It can, more than it reduces download. Your phone or laptop transmits at much lower power than the router, so the uplink is the first thing to degrade as you move away or as the channel gets busy. If upload is much worse on Wi-Fi than on a cable, the radio link is the constraint rather than the line.
On a narrow uplink even a modest test payload takes real time to push, and a test that sizes itself from your download speed will try to send far too much. This test gauges the uplink first and sizes accordingly, so it stays bounded on slow links instead of grinding.
Yes, and it is worth establishing before you call them. If the uplink is far below plan on a wired connection, at different times of day, with nothing else uploading, that is evidence rather than an impression — and it is the kind of evidence support desks act on.
Signalyzr is a free, privacy-first network diagnostic tool made in India. Loading the diagnostic app…