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.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Mobirise is a free offline app for Windows and Mac to easily create small/medium websites, landing pages, online resumes and portfolios.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.