Porthos Fu
Porthos Fu

Porthos Fu, ISAB Executive Committee member. Focuses on organizing activities and recruiting new members. Visit https://isab.run/ for ISAB News & Updates

Accelerate Your Website's Performance with Cloudflare's HTTP 103 Early Hints: An In-Depth Guide

As the web continues to evolve and user expectations continue to rise, delivering fast and responsive websites has become increasingly important. This has led to the development of various techniques and technologies aimed at improving the performance and user experience of websites. One such optimization is the use of HTTP 103 Early Hints.

HTTP 103 Early Hints is a new HTTP status code that allows servers to start pushing resources to clients before a full response is available. This can help to improve the perceived performance of a website by reducing the amount of time it takes for a user to start receiving content. In this article, we'll explore how to use Cloudflare to provide HTTP 103 Early Hints for your website.

Before diving into the steps for configuring Cloudflare for HTTP 103 Early Hints, it's important to understand how it differs from other HTTP delivery optimizations like preload instructions and server push. Unlike preload instructions, which specify resources that should be loaded in the background as soon as possible, HTTP 103 Early Hints provides a more immediate response to the client. This can be especially useful for critical resources like fonts and stylesheets.

Similarly, while server push can be used to send multiple resources at once, it requires support from the client, whereas HTTP 103 Early Hints can be used even in browsers that don't support server push. This makes it a more widely applicable optimization.

To configure Cloudflare for HTTP 103 Early Hints, follow these steps:

  1. Sign up for a Cloudflare account and add your website.
  2. Go to the Cloudflare dashboard for your website.
  3. In the Speed section, select Optimization.
  4. Toggle the switch for HTTP/3.
  5. Under Early Hints, toggle the switch to On.

Once you've completed these steps, Cloudflare will automatically provide HTTP 103 Early Hints for your website.

In conclusion, HTTP 103 Early Hints is a powerful optimization that can help to improve the perceived performance of your website by providing an early response to the client. By using Cloudflare to provide HTTP 103 Early Hints, you can take advantage of this optimization with ease, and ensure that your website provides the best possible experience for your users.

This article was originally published on our website https://isab.run.

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