When you use Auth0 for authentication, you can use a custom domain to make your login page respect your branding and look more professional. This is usually accomplished with a simple CNAME record pointing to the Auth0 domain. It's a straightforward process if you use Auth0's managed certificates. However, depending on the popularity of your service you might find yourself under auth attacks that might cause your auth to be down. The way to fix this is by proxying your auth through Cloudflare.
The spectacular implosion of the FTX group this week was most likely the worst week for the crypto industry since its inception. Watching its meltdown live on Twitter (while Twitter itself is going through troubles of its own!) was both entertaining and stomach-churning at the same time. Unfortunately this blow is going to have a ripple effect in the industry and a few more players will go down.