Protein.com
Supplementsprotein.com
Average
out of 100
Protein.com's Slim Meal Shake page has genuinely strong bones — 6,899 reviews with a 4.9 rating visible near the fold, a rich desktop image gallery with video, and a clear price-embedded CTA — but a catastrophic PSI mobile score of 22 (LCP 24.9s) means most cold mobile visitors never see any of it. Social proof and visual merchandising are the page's strongest dimensions, while mobile performance and the absence of a guarantee near the CTA and any subscription option are the most critical conversion gaps to close.
Top Finding
PSI mobile score is 22/100 with LCP of 24.9s, FCP of 22.4s, CLS of 0.498, and TBT of 480ms. A 24.9s LCP means most cold mobile visitors will abandon before the hero image fully loads. The CLS of 0.498 is nearly 5x the 'good' threshold, meaning the page visibly jumps as it loads.
mobile performance · critical
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Score breakdown across all 5 dimensions, every finding, prioritized fix list, and category benchmark position.