I own a print-on-demand business specializing in cat-themed t-shirts, but my traffic is minimal. My question is: Is it better to maximize the number of SEO keywords, or is there a recommended limit? For example, Etsy allows up to 13 keywords.
Shopify doesn’t use keywords in the same way that Etsy does. You just need to have a clear title, heading, and description that naturally include your keywords. If you’re referring to Tags, you don’t need or want to create a bunch of keyword tags. You most likely do not need those tags pages and will do fine with Collections and Products.