If you haven't already, download the TrackingTime Button Extension for Chrome: https://chrome.google.com/webstore/detail/trackingtime-button/fglmkdhomaklnckgbjfnfmbfmlkjippg
2. Once installed, please click on the extension button in Chrome's toolbar to login with your TrackingTime account (the email and password you used to signup for TrackingTime)
3. At the bottom right in the extension, click on the options menu then on settings.
4. In you settings navigate to "Custom rules" write your domain without the http:// and select Redmine rule and click "add domain".