Early Hints

The 103 Early Hints status code is utilized to provide preliminary headers to the client ahead of the final HTTP response.

HTTP status code 103 Early Hints is an informational response status code used to indicate to the client that the server is likely to send a final response shortly after.

Early Hints allow the server to send a partial response, such as link headers, while the rest of the response is being generated, allowing the client to start preloading resources before the final response is available.

This can improve perceived performance by allowing the client to start fetching critical resources earlier in the request-response cycle.

Early Hints are typically used in conjunction with other status codes, such as 202 Accepted or 103 Checkpoint, to provide additional information to the client.

This proactive loading can significantly reduce page load times by allowing the browser to load crucial assets like CSS stylesheets, JavaScript files, and images in parallel with the server’s processing.

Essentially, it serves as an optimization mechanism, informing the client about which resources to expect and to start fetching them early, thus improving the overall user experience with faster content rendering and interactivity.