Apache is a free and open-source cross-platform web server software.
cdnjs is a free distributed JS library delivery service.
Craft CMS is a content management system for building bespoke websites.
Etracker is a web optimisation solution.
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.
SEOmatic facilitates modern SEO best practices & implementation for Craft CMS 3.
Typekit is an online service which offers a subscription library of fonts.