If a stranger cannot open your profile, there is nothing here to measure and the attempt is spent.
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This only means anything on a profile a stranger can reach. Open yours in a browser where you are not signed in and confirm that the page renders and that a figure is visible on it. If it does not, the sample will complete against nothing and the allowance goes on discovering that, which is an expensive way to learn a two-minute fact.
Log the figure and the moment you logged it. Let the window run out. Then look once from that same outside view and compare. Your own session shows you a version of the page you already know, so nothing useful comes from checking there.
The route and the address, and nothing wider than that. How the figure sits beside your activity, and whether anybody who follows watches anything you post, are questions for a longer period and a larger commitment than a demonstration involves.
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