103 Early Hints
Explanation:
The 103 Early Hints status code is used to return some response headers before final HTTP message. It allows a server to send the response headers ahead of the final response. This helps to start loading resources while the server is still preparing a response.
Usage:
Useful for performance optimisations, the server can hint to the client which resources can be preloaded or fetched early.
Attentions:
- This status code mostly concerns frontend performance optimisation and should be used when significant load times are expected.
- Clients should be prepared to handle a subsequent final response after the early hints.
Sample:
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