Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Silverstripe CMS is a free and open source Content Management System and Framework for creating and maintaining websites and web applications.
Typekit is an online service which offers a subscription library of fonts.