HTTP/2 and HTTP/3 Fundamentals

HTTP, or Hypertext Transfer Protocol, is the foundation of data communication for the World Wide Web. It's the set of rules that browsers and servers use to talk to each other.

When you type a URL, HTTP is working behind the scenes to fetch the page content you see. Understanding its evolution helps us optimize web performance.

For a long time, HTTP/1.1 was the dominant version. It works by sending one request at a time over a single connection. This simple approach works, but it has some significant limitations for modern, complex websites.

Think of it as a single-lane road for all your web traffic.