Term Kind Topic What it is
Client Request Waterfall Fetch Waterfall, Client-Side N Plus One concept API Shapes for UI A chain of requests where each one can only start after the previous response arrives, so the screen's load time is set by the depth of the chain times the round trip rather than by bandwidth.
Over-Fetching concept API Shapes for UI Transferring fields the interface will not display, which costs bandwidth and parse time on exactly the devices least able to afford them.