Drupal is a free and open-source web content management framework.
The Open Source Application Delivery Platform for Kubernetes.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
Varnish is a reverse caching proxy.
WhatsApp Business is a free to download app available on Android and iPhone using which businesses can connect with their customers.