Web Development
01 Sep 2026
3 min read
Use HTTP 103 Early Hints Without Breaking Page Delivery
A server may need time to produce an HTML response even though it already knows that the page will require a stylesheet or other critical resource. HTTP 103 Early Hints lets the server send selected Link hints before the final response so a supporting client can begin useful work sooner. The optimization is optional: the final response still determines the page result. Understand the response sequence A simplified exchange looks like this: