From the course: Advanced SEO: Developing an SEO-Friendly Website

Unlock the full course today

Join today to access over 22,400 courses taught by industry experts or purchase this course individually.

HTTP/2

HTTP/2

- [Instructor] As we look towards the future of SEO, it's important that we discuss HTTP/2. Over the last 15 years, the web has been supported by HTTP/1.1, but we're pushing the boundaries of web development these days, and loading sites is incredibly resource intensive. Think about all the requests your site makes, both to load its content, but also to communicate with tracking pixels, imported fonts, offsite JavaScript libraries and so on. HTTP/1.1 isn't efficient with all of these requests. HTTP practically only allows one outstanding request per TCP connection. So here's how this works. The browser makes a request, waits for a response, makes another request, waits for a response, and so on. So the next step was for browsers to use multiple connections to issue parallel requests. So now we can issue request number one, wait for a response, and simultaneously kick off request number three, and so on. However, there are limits to this. Open up too many parallel connections, and you…

Contents