HTTP 103 Early Hints

Lets the browser start preloading resources before the final response.

๐Ÿ”’ Runs locally โ€” your input never leaves this browser tab

Code
103
Name
Early Hints
Category
1xx โ€” Informational

How to fix / what to check

Informational only; used for performance.

See the status code yourself

curl -sS -o /dev/null -w '%{http_code}\n' https://example.com/path

Add -v to see the full request and response headers.

โ† All HTTP status codes