To submit your website's sitemap to Bing and Google, log in to the appropriate webmaster tools and verify your site ownership. (Find instructions for how to do that here.) Ensure that the URL listed is your Primary Domain in your SpaceCraft settings by going to Settings, clicking Domains and clicking the star next to the domain you wish to make primary.
1. From your Webmaster Tools Dashboard, select Configure My Site and then Sitemaps
2. In the Submit a sitemap field, type your URL with the addendum /sitemap.xml (exactly how the example in the box shows).
3. Select Submit Sitemap
1. From your Webmaster Tools Search Console Dashboard, select your Website Name (ex. "www.website.com") then dropdown Crawl, select Sitemaps
2. Select the Add/Test Sitemap button and in the box that appears, type sitemap.xml
3. Select Submit
Done! The search engines will use your sitemap to best crawl your website.