Bootstrap is a free and open-source front-end framework for designing websites and web applications. It contains HTML and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions.
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
PHP: Hypertext Preprocessor is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems, and web frameworks.
Typekit is an online service which offers a subscription library of high-quality fonts. The fonts may be used directly on websites or synced via Adobe Creative Cloud to applications on the subscriber's computers.
Cloudflare Content Delivery Network (CDN) is a geographically distributed group of servers that ensure fast delivery of Internet content, including HTML pages, JavaScript files, stylesheets, and images.
Hornetsecurity Spamfilter is a spam filter service designed to help enterprises detect & protect email mailboxes from spam, malware and viruses, with spam recognition & virus detection technology, plus adjustable content filters for unwanted attachments, statistics, encrypted data traffic, and more.