Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Font Awesome is a font and icon toolkit based on CSS and Less.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Klaviyo is an email marketing platform for online businesses.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Typekit is an online service which offers a subscription library of fonts.
UserWay is a web accessibility overlay for websites that claims to improve compliance with accessibility standards.