Have an account on this instance and want to log in? GoToSocial does not provide its own webclient, but implements the Mastodon client API. You can use a variety of clients to log in to your account here:
Semaphore is a web client designed for speed and simplicity.
Use SemaphoreTusky is a lightweight mobile client for Android.
Get TuskyFeditext (beta) is a beautiful client for iOS, iPadOS and macOS.
Get FeditextOr try one of the Mastodon clients listed on the official Mastodon page.
Get Mastodon apps