What is the fundamental protocol that makes hypertext transfer on the Web possible?

HTTP

HTTP, or Hypertext Transfer Protocol, is the foundation of the World Wide Web. Developed by Tim Berners-Lee at CERN in the 1980s, HTTP enabled the creation of interconnected websites through hyperlinks, making information globally accessible and interconnected. Before HTTP, access to and sharing of information were largely limited and fragmented. The introduction of HTTP transformed the Internet into a collaborative and dynamic space, laying the groundwork for the explosion of websites, online services, and social media platforms that shape our world today.