If you're looking for a good ecommerce SEO Checklist, you should think about including the following:
Appropriate keywords: Include relevant and natural flowing keywords into your headlines, descriptions, and copy. This includes primary and latent semantic index keywords.
Keyword analysis: Research the keyword search volume, CPC, and user intent of searches.
Competitor research: Look at your competitor's websites and learn their SEO secrets and techniques.
Focus on homepage SEO: Optimize your home page with a title tag, meta description, content, site architecture, internal linking, and more.
Focus on product pages: Optimize your product pages with good product names, image optimization, video, customer reviews, FAQS, and more.
Implement responsive design: Include a responsive design, so customers have a better user experience on mobile devices.
Increase page speed: Reduce page loads on desktop and mobile; it will help you to rank better on Google.
Reduce image sizes: Reduce the size of your website's images to allow faster browsing for users.
Add backlinks: Add high-quality backlinks to allow your website to gain more authority.