Protocol Explorer

Protocol Explorer is an interactive network protocol visualizer for anyone who wants to actually see what happens on the wire. It animates 33 internet protocols packet by packet - DNS, TCP, TLS, QUIC and more - and decodes every header byte so learners can match textbook diagrams to real traces. The HTTP and HTTPS lessons are free; Pro unlocks the remaining 31 protocols together with the full packet inspector. Built for network engineers, computer-science students and certification candidates who want to stop guessing and start watching packets travel.