HTTP 206 Partial Content vs 520 Web Server Returned an Unknown Error
HTTP 206 (Partial Content) is a 2xx Success response, while 520 (Web Server Returned an Unknown Error) is a 5xx Server Error response. 206 indicates that the server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming. In contrast, 520 means that cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
描述
The server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming.
何时出现
During video streaming, large file downloads, or when resuming interrupted downloads.
如何修复
No fix needed. This is normal behavior for range requests.
描述
Cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
何时出现
When Cloudflare receives an empty, unknown, or malformed response from the origin.
如何修复
Check origin server logs. Ensure responses include proper headers. Verify SSL configuration.
主要区别
206 is a 2xx Success response, while 520 is a 5xx Server Error response.
HTTP 206: The server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming.
HTTP 520: Cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
You encounter 206 when during video streaming, large file downloads, or when resuming interrupted downloads.
You encounter 520 when when Cloudflare receives an empty, unknown, or malformed response from the origin.
何时使用哪个
For 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 520 (Web Server Returned an Unknown Error): Check origin server logs. Ensure responses include proper headers. Verify SSL configuration.