Plan a web performance test with a budget

Task: Plan a repeatable performance test for one page of my own site, with a performance budget and a pass or fail rule. Context: The page is [page address or name] and its main job is [page purpose]. Most visitors use [typical device and connection]. Performance matters here because [business reason]. Rules: - Propose budget numbers for page weight, number of requests and time until the main content is visible, and mark each number as "my starting guess, adjust to my data". - Specify test conditions: device profile, network throttling, cache state and the number of runs, so results can be compared. - Include a baseline run before any change, and say what difference between runs counts as noise. - Mention which tools I might use only by type, such as lab tool or field data, and tell me to verify current features on their sites. Result: A numbered plan of at most seven steps, followed by a table of the budget with the columns metric, budget and how to measure.