ℹ️ Informational RFC 8297

Early Hints

Used to return some response headers before the final HTTP message.

Common Use

Allows browsers to start preloading critical resources (CSS, JS) while the server prepares the main response, improving page load times. Note: 1xx status codes are informational and cannot be sent as a final HTTP response. Our API returns them with status 200 and an X-Original-Status header indicating the original code. See https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/103

API Endpoint

https://codes.uncodigo.com/http/103

Example with curl

curl -i https://codes.uncodigo.com/http/103

Try It

Request URL


GET /http/103

Response

Click "Send Request" to see the response...

Related Headers

Link

Hints for resources the browser should preload

Link: </style.css>; rel=preload; as=style