[>_] ROOM · Web
Follow one page load from the address bar to the finished page: DNS, TCP, TLS, the first HTTP exchange and the files the page pulls in.
// about
A customer types https://shop.fernhill.lab/products/101 and a product page appears. This room follows that one page load from start to finish. You look up the name with dig, watch the TCP connection and the TLS summary in curl, read the first HTTP request and response, and list the files the HTML asks for from the CDN and the API. Each lesson has a diagram and a terminal exercise against the Fernhill lab shop. The room ends with a guided lab in which you trace the whole load and write it up as a trace file.
Each task’s Rep is set individually — beginner tasks average +10. The +90 room bonus unlocks at 100%.