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About This Test
The GoIPScan Speed Test measures latency and download rate using Cloudflare’s edge network. It is optimised for fast, privacy-first checks — not long continuous load tests.
How this test works
The test runs entirely in your browser against Cloudflare's public speed endpoints — the same infrastructure behind speed.cloudflare.com. Nothing is measured on our servers.
- Download: four parallel requests to
speed.cloudflare.com/__down, 20 MB each, 80 MB in total. We time the whole batch and divide the bytes received by the elapsed time. - Upload: four parallel POSTs to
speed.cloudflare.com/__up, 5 MB each, 20 MB in total. - HTTP latency: we warm the connection to
speed.cloudflare.com, then send five small requests over it and take the median round trip. This is not an ICMP ping — it includes HTTP request and response handling over an already-open TLS connection. A single cold request would also include DNS resolution and the TLS handshake, which is why an earlier version of this page reported 1,109 ms on a line that was working perfectly well. - Units: bytes are multiplied by 8 to get bits, then divided by 106. Mbps means 106 bits per second, which is how ISPs quote line speeds. Using 220 instead — as this page did until 29 September 2026 — understates every result by 4.86%.
What affects your result
Browser speed tests measure what your browser can achieve right now, which is not the same as what your line can do. The main influences:
- Wi-Fi. Usually the narrowest part of the path. A test over Wi-Fi measures your Wi-Fi at least as much as your broadband.
- Other traffic. Anything else downloading, streaming or backing up competes for the same line.
- Distance to the endpoint. Cloudflare will normally serve you from a nearby location, but on a VPN you are measured from the VPN server's position instead.
- Browser and device limits. Very fast connections can exceed what a browser tab can process, so the figure flattens out before your line does.
What this test cannot tell you
It cannot confirm the speed your ISP contracted to deliver. For that you need a wired test to your provider's own measurement server, which is what an official line test does. It cannot separate a slow line from slow Wi-Fi, diagnose packet loss or jitter, or measure anything beyond the moment you ran it — congestion varies by time of day.
If the result looks wrong, check whether you are on a VPN first: run the IP lookup to see which network you are exiting from, and the VPN leak test if you expect a tunnel to be active. Our how we test page explains how this and the other tools are checked.