1xx · Informational

HTTP 103 Early Hints

Preliminary headers, usually Link, so the browser can start loading resources before the final response.

Example response

HTTP

HTTP/1.1 103 Early Hints

Look up the headers shown here in the HTTP headers reference.

Common questions

What does HTTP 103 mean?: Early Hints. Preliminary headers, usually Link, so the browser can start loading resources before the final response.
Is 103 an error?: No. 1xx codes are informational responses: The request was received and the process is continuing.

Other 1xx codes

100 Continue 101 Switching Protocols 102 Processing