HTTP 206 Partial Content vs 521 Web Server Is Down
HTTP 206 (Partial Content) is a 2xx Success response, while 521 (Web Server Is Down) 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, 521 means that cloudflare-specific. The origin server refused the connection.
설명
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.
이 코드를 보게 되는 경우
During video streaming, large file downloads, or when resuming interrupted downloads.
해결 방법
No fix needed. This is normal behavior for range requests.
설명
Cloudflare-specific. The origin server refused the connection.
이 코드를 보게 되는 경우
When Cloudflare can't establish a TCP connection to the origin server.
해결 방법
Check that the origin server is running and the firewall allows Cloudflare IPs.
주요 차이점
206 is a 2xx Success response, while 521 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 521: Cloudflare-specific. The origin server refused the connection.
You encounter 206 when during video streaming, large file downloads, or when resuming interrupted downloads.
You encounter 521 when when Cloudflare can't establish a TCP connection to the origin server.
언제 어떤 것을 사용할지
For 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 521 (Web Server Is Down): Check that the origin server is running and the firewall allows Cloudflare IPs.