cdnjs is a free distributed JS library delivery service.
Constant Contact is a marketing automation and email marketing solution.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
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.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.
theTradeDesk is an technology company that markets a software platform used by digital ad buyers to purchase data-driven digital advertising campaigns across various ad formats and devices.
Typekit is an online service which offers a subscription library of fonts.