Akamai Bot Manager detect bots using device fingerprinting bot signatures.
Akamai is global content delivery network (CDN) services provider for media and software delivery, and cloud security solutions.
Envoy is an open-source edge and service proxy, designed for cloud-native applications.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Open Graph is a protocol that is used to integrate any web page into the social graph.