To access the domain management dashboard for a domain registered with Register.com, you will need to visit the Register.com website. Once there, look for the login option, which is typically located at the top right corner of the page. After clicking on the login link, you will be prompted to enter your username and password associated with your account. If you do not remember your login credentials, there should be an option to recover your account through email or security questions. Once you successfully log in, you should be directed to your domain management dashboard, where you can manage your domains, update settings, and access various features. If you encounter any issues during this process, please refer to the website for assistance or further instructions.