The online services on the Switch that you use are running on the lp1 environment - i.e. production.
What is required to access dd1 though? Do you need a devkit for this? When I tried entering https://api.dd1.av5ja.srv.nintendo.net (SplatNet 3), it threw a 403 - which is strange, as the lp1 environment version at least displays a loading screen before failing due to incorrect authentication cookie.
What is required to access dd1 though? Do you need a devkit for this? When I tried entering https://api.dd1.av5ja.srv.nintendo.net (SplatNet 3), it threw a 403 - which is strange, as the lp1 environment version at least displays a loading screen before failing due to incorrect authentication cookie.