I just found this online typing test for PD screening - it’s £free, and they don’t require any contact details.
Diagnosing Parkinsons Disease using KeySense | from Parkinson’s Research (parkinsons-research.org)
“KeySense has a high and repeatable accuracy, with an 86% detection rate for even early, mild symptoms of Parkinson’s. This compares with GP accuracies of less than 75% across all disease severities, and much lower than that for early, mild cases.”
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I had to type out half a page, then the results told me I might have PD
