HTTP 414 URI Too Long indicates the request URL exceeds the server's limit. While HTTP doesn't specify a maximum URL length, servers impose practical limits: Apache defaults to 8190 bytes, nginx to 8KB, IIS to 16KB, and most browsers cap at 2048 characters. This typically occurs when query parameters accumulate excessively, such as passing large datasets via GET instead of POST.
Response includes the status code, standard headers (including Content-Type), and a small diagnostic JSON body describing the request and returned status.
Simulator URL (copy in the app after load — not a normal link):
https://httpstatus.com/api/status/414
Example request:
curl -i "https://httpstatus.com/api/status/414"