"I have an e-commerce website with a large number of products and I am looking to expand, but I am facing issues with Google penalizing my website by decreasing page views. It seems to be happening through manual review. I am wondering if uploading products on subdomains could help resolve this issue. Has anyone had experience with this?"
Scaling on your main domain is generally better for SEO. Subdomains can be treated as separate websites by Google, potentially affecting your overall search engine ranking. It’s more likely that your website’s issues stem from content quality rather than quantity. Consider focusing on improving product descriptions and user experience. Organizing products through category pages might also improve your website’s structure. Manual penalties are infrequent, so the decrease in page views is likely due to algorithmic adjustments.