What is H1 tag ❓
The H1 tag has the value of “On-Page SEO” and when viewed in HTML is looks like this: `<h1>On-Page SEO</h1>
The easier way to understand the use of the H1 tag is to imagine that you are writing an outline of a large document. The main title of your document will be your <H1>, your main points the <H2> and sub-points the <H3>.
So if your Shopify website is missing H1 tag, then you're losing traffic (stupidly)
Hire an SEO expert to put the H1 tag in your Shopify store or you do it yourself if you have some coding basics