This test measures what makes a website feel slow from your network: how long it takes to look up the address, open a connection and a secure session, get the first byte back, and whether requests hang or stall.
It takes about a minute and transfers roughly 20 MB per location. Please pause other downloads and streaming, and stay on this tab while it runs.
When the test finishes, the results are sent to ReadyServer together with your IP address, your internet provider's network name and your browser version, so we can compare providers and locations. Nothing else from your device is read.