Keywords indicate intent. The right keywords that accurately describe your product, mirroring target market intent, helps your product surface in search results. How it ranks, is dependent on search engines like Google.
Google decides if your product is relevant to the market. This is based on Google’s formula. The Search engine results page (SERP) guides the searcher to the most relevant product for the searched words.
You can use this data to estimate which keywords are prominent on which ecommerce site. And this also leads to you have a better idea of which site you have a better opportunity to rank if you do your SEO well.
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