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Aug 08, 2026
414
HTTP 414 URI Too Long
4xx Client Error
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4xx Client Error
RFC 7231, Section 6.5.12
What is HTTP 414 URI Too Long?
The 414 (URI Too Long) status code indicates that the target URI is longer than the server is willing to interpret. This is often caused by excessive query string parameters or deeply nested URL paths. Most servers have a configurable URI length limit.
Common Use Cases
- Excessive query string parameters
- Long URL-encoded data in GET requests
- Infinite redirect loops causing URL growth
Usage Example
If a client sends a GET request with dozens of query parameters that make the URL exceed 8KB, return 414 URI Too Long. The client should convert the request to POST with the data in the body instead of the URL.
# Nginx - increase URI length limit
large_client_header_buffers 4 16k;
# Apache - increase URI length limit
LimitRequestLine 16380Related Status Codes
Common Mistakes
⚠️
Mistake: Using GET requests with large payloads instead of POST
Fix: If your request includes large amounts of data, use POST with the data in the body. GET requests have URL length limits and exposing data in the URL is a security risk.
Last updated: 17 Aug 2026
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