Thanks Pranay.
Let me improvise (a few corrections to) your answer a little further.
Twak.to can be manually integrated into NopCommerce 4.30 by following the below two steps:
1. Edit the _Root.Head.cshmtl
2. Add a Setting in Admin Panel
Edit the _Root.Head.cshtml fileThe location of this file may be different for every theme. Some of the examples are given below:
Default Theme: This file would be in the folder:
~\Views\Shared
Nop-Templates Theme (Example: Pavilion): This file would be in the folder:
~\Themes\Pavilion\Views\Shared
Editing the file:
Open the file in any editor, Scroll down all the way and find the </body> tag.
Goto tawk.to account, copy the javascript for the live chat window. Paste this copied javascript code before the </body> tag.
Save the file and deploy it to your server.
Add a Setting in Admin PanelLogin into Admin Panel.
Navigate to Configuration -> General Settings
Scroll down and find the Section "SEO"
In this section, you will see the "Custom <head> tag" text box.
Copy the following into the text box and save the settings:
<meta name="referrer" content="no-referrer-when-downgrade">
You are good to go!