Multiple Domains on Your Site and SEO
If more than one domain is connected to the same Wix site, only the primary domain will appear in search results.
When connecting more than one domain to your Wix site, your primary domain is connected directly to your Wix site, while any secondary domains are automatically redirected to your primary domain (using a 301 redirect that is Wix implemented). All traffic arriving to a secondary domain is automatically redirected to the primary domain (and your Wix site).
The information appearing in search results for a page on your site (the page's title tag and meta description) is determined per site, not per domain, and will appear for your primary domain only.
When two or more domains are connected to a site, you only need to add the Google Analytics code to the primary domain.
Did this help?