Add a viewport meta tag on Shopify
Why it matters
Without a viewport tag, phones show the page as a tiny desktop layout. Google indexes the mobile version of your site, so a page that is not mobile-ready can rank lower.
The fix
- Open Online Store, Themes, Edit code, and check the head in theme.liquid for the viewport tag. Add it if it is missing, or update the theme, because current Shopify themes include it.
Related
Scan your domain to see whether this applies to you.