In Joomla it’s very straight forward to view Template Positions. You can add ?tp=1 at the end of any URL of your joomla site and you’ll be able to see the template module positions.
Make sure that you have the template positions enabled in the Template manager. To enable login to your Joomla backend and navigate to Extensions >> Templates.
Click Options on the top right and make sure Preview Module Positions is Enabled.
Click the "Preview" link next to your templates.
You'll now be able to see the module positions for your template: