1. Go to the Website Visitors Tab, then "Setup". The first step is to click the "Add New" button.
2. Enter your domain. Click "Get the Pixel"
3. Log in to your cPanel account and click "File Manager". Open the "public_html" folder.
3. Start editing the home page HTML file. It can also be an index.html if you don't have a home page.
4. Copy the script from Instantly and add it in the header (after the <head> tag). Save the changes.
5. Go back to Instantly and test the script.
If the test is successful, you can close the window. Now you can proceed to create a Slack notification or a filtered view for your site visitors.
Here's the video explaining the steps: