Another way to measure the network timing of a request consists of abusing the socket pool of a browser 1. Browsers use sockets to communicate with servers. As the operating system and the hardware it runs on have limited resources, browsers have to impose a limit. Run demo (Chrome) Run demo (Firefox) To exploit the existence of this limit, attackers can: Check what the limit of the browser is, for example 256 global sockets for TCP and 6000 global sockets for UDP. 23 Block \(255\) sockets fo...| XS-Leaks Wiki
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ip.wtf and showing you your actual HTTP request| dgl.cx