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.
Cloudinary is an end-to-end image- and video-management solution for websites and mobile apps, covering everything from image and video uploads, storage, manipulations, optimisations to delivery.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Instana is a Kubernetes-native APM tool which is built for new-stack including Microservices and lately Serverless but also supports the existing VM based stacks including several supported technologies.
Open Graph is a protocol that is used to integrate any web page into the social graph.