HTTP 203 Non-Authoritative Information vs 524 A Timeout Occurred
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 524 (A Timeout Occurred) is a 5xx Server Error response. 203 indicates that the response payload has been modified by a transforming proxy from the origin server's 200 response. In contrast, 524 means that cloudflare-specific. A TCP connection was established but the origin didn't respond with an HTTP response in time.
説明
The response payload has been modified by a transforming proxy from the origin server's 200 response.
このコードが表示される場合
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
解決方法
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
説明
Cloudflare-specific. A TCP connection was established but the origin didn't respond with an HTTP response in time.
このコードが表示される場合
When a request to the origin takes longer than Cloudflare's 100-second timeout.
解決方法
Optimize slow endpoints. Move long-running tasks to background jobs.
主な違い
203 is a 2xx Success response, while 524 is a 5xx Server Error response.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
HTTP 524: Cloudflare-specific. A TCP connection was established but the origin didn't respond with an HTTP response in time.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 524 when when a request to the origin takes longer than Cloudflare's 100-second timeout.
どちらをいつ使うか
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 524 (A Timeout Occurred): Optimize slow endpoints. Move long-running tasks to background jobs.