Apache is a free and open-source cross-platform web server software.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
Particles.js is a JavaScript library for creating particles.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.