HTML Meta Keywords is a key factor in Search Engine Optimization (SEO). The Shopify Admin doesn’t support HTML Meta Keywords by default. It is a problem that search engine cannot crawl and index sufficient information with your website that impact Search Engine Results Page (SERP).
This app allows you to add Meta Keywords in HTML source code to your Shopify store. It makes modification with Homepage, Products, Collections, Pages, Blogs & Articles sections. It helps store owners to resolve the SEO problem.
Install Link : https://apps.shopify.com/cloudian-seo-meta-keywords