AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
LiteSpeed is a high-scalability web server.
PHP is a general-purpose scripting language used for web development.
A modest JavaScript framework for the HTML you already have.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.