If you are looking for the FusionAuth admin login, you'll find Go to Admin Dashboard button which will take you there. If you don't have an admin account to FusionAuth, no need to click there you won't get very far. You'll want to theme this page to either redirect to your site, or provide links for your end users to find their applications.
Here are some links to help you get started! Welcome to the FusionAuth community, we're glad to have you!