Step 1. Log in to your Shopify account. 

Step 2. Select the online store. 

Step 3. Click on the "Themes" Icon.

Step 4. Next, in the "Current Theme" section, navigate to the "Actions" drop-down menu and select "Edit Code". 

Step 5. Under layout, select the theme .Liquid.

Step 6. Scroll down until you find the following tag: [/head].

Step 7. Paste the Visual Visitor Tracking Code just before this tag. 

Step 8. Click the Save Icon. 

Step 9. Your Visual Visitor Tracking Code is now installed.