Each thumbnail/title must be tested for at least 1 day or 2 hours. The number of thumbnails/titles you upload, plus 1 for the original, determines the minimum test length.
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Written by Daniel Ch
Updated over a week agoEach thumbnail/title must be tested for at least 1 day or 2 hours. The number of thumbnails/titles you upload, plus 1 for the original, determines the minimum test length.