HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Lever is a software company headquartered in San Francisco, California and Toronto, Canada that provides an applicant tracking system for hiring.
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.