A community member is unable to add a custom domain to their site and is seeking help. The community members suggest trying incognito mode, checking for Chrome extensions, and testing on a new blank project to see if the issue is with the specific project. The issue is eventually resolved by using incognito mode. However, the community member then faces another issue with the domain not propagating, and they are advised to check the documentation, wait for the publishing process to complete, and optimize the website's performance.
set images that are high up in the viewport (user can see them right away) to loading eager
reduce the amount of fonts you use to a minimum, ideally use a variable font, because you can use one font for all font settings (right now your fonts are 1 mb)