Calendly is an app for scheduling appointments, meetings, and events.
HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
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.