You can configure your custom domain name in Netlify DNS, which impacts both how people find your site and the kind of site performance they experience. When using Netlify DNS, you have three primary options: a bare domain (no subdomain) or a subdomain on Netlify, or a bare domain with another DNS provider. The recommended setup is to use a subdomain that uses the www. prefix and sets up CNAME records to map it to your Netlify site's URL. This configuration allows for fast page load times regardless of where visitors are located, thanks to advanced traffic direction and routing around network-level issues. Using an A record on the bare domain can also be done with a static IP address from Netlify, but this doesn't allow for advanced traffic direction. Ultimately, using a subdomain is recommended for optimal performance and flexibility in managing DNS records.