Shopify admin now lives at admin.shopify.com
We’ve consolidated all Shopify store admin URLs under a single domain, admin.shopify.com, replacing the myshopify.com part of each store’s unique URL. This will reduce page load times and give you smoother transition between stores.
The new admin.shopify.com domain improves load times for apps in the admin, but requires app developers to make some software updates. Third-party apps that haven’t yet been updated will temporarily open in a new tab using the old myshopify.com domain, so you can continue to use them. All apps are required to update by September 2023.