You need the Basic Shopify plan or higher to use the Online Store sales channel.

The Shopify Online Store feature lets merchants create a website to sell products, publish content, and manage customer experiences online.

Effective domain management improves branding, SEO, trust, and international expansion.

No, Shopify recommends entering the apex domain only.

Sometimes configuration delays may temporarily show them differently.

Incorrect DNS settings or incomplete propagation.

Yes, with Markets configuration.

Google Search Console.

A sitemap helps search engines discover store pages.

Yes, especially for international domains.