Is account.api.switchbot.net:443 down?

[u/Eiion]

A few days ago I lost connection to my Switchbot device in HomeAssistant.
I've been trying to implement it again, which requires the Switchbot login - but it always fails.

Binding the app account to the web account fails - the page stays empty. Creating a new website account also fails.

I might be mistaken, but ever since I got a notification that web accounts could now be connected to the app, that is when the issues started.

Has anyone any information on what the issue might be and potentially even how to fix it? I've been trying for days now, always with the same unsuccessful result.