After migrating my ecommerce site to a new server, Google stopped indexing the main homepage for brand searches. Before the migration, searching for ‘brandname’ would usually bring up the default homepage URL (https://www.brandname.xx) as the top result.
However, a few days after the server migration, Google stopped indexing this homepage URL, and now brand queries show links to product subcategories or sometimes http://brandname.xx or http://www.brandname.xx (without SSL). It seems like https://www.brandname.xx is not being indexed at all. There haven’t been many other ranking changes for other keywords.
If you’re using Let’s Encrypt, try deleting and recreating the certificate. Sometimes if it’s generated before the transfer finishes, it can cause issues. Also, check your Cloudflare settings and clear all caches.