Confirm the profile still loads for a signed-out visitor before you spend an allowance on it.
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Open your profile in a browser where you are not signed in and confirm it renders the way you expect, with a figure you can actually read. If it does not, there is nothing for the sample to measure and the attempt is spent on discovering that. Two minutes first saves the whole exercise.
Assuming it does load, the method is short. Note the figure and the time, wait for the window to close, and check once from that same signed out view. Compare the two numbers rather than the feel of the page.
The route and the address, and nothing wider. How the figure sits beside your activity, whether anybody who follows turns up for anything, and how it holds over a month are all outside what a single small batch can describe.
None of that is a shortfall in the test. It is the difference between confirming a mechanism and evaluating a strategy, and only the first fits into an evening.
Short answers to what people ask most before ordering.