HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Sendinblue is an email marketing solution for small and medium-sized businesses that want to send and automate email marketing campaigns.
Webflow is Software-as-a-Service (SaaS) for website building and hosting.