HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
iubenda is a compliance software used by businesses for their websites and apps.
Mailchimp is a marketing automation platform and email marketing service.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Ruby on Rails is a server-side web application framework written in Ruby under the MIT License.
A modest JavaScript framework for the HTML you already have.