HTTP 200 OK vs 520 Web Server Returned an Unknown Error
HTTP 200 (OK) is a 2xx Success response, while 520 (Web Server Returned an Unknown Error) is a 5xx Server Error response. 200 indicates that the request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only. In contrast, 520 means that cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
설명
The request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only.
이 코드를 보게 되는 경우
The most common HTTP response — indicates the request was processed successfully.
해결 방법
No fix needed. The request succeeded as expected.
설명
Cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
이 코드를 보게 되는 경우
When Cloudflare receives an empty, unknown, or malformed response from the origin.
해결 방법
Check origin server logs. Ensure responses include proper headers. Verify SSL configuration.
주요 차이점
200 is a 2xx Success response, while 520 is a 5xx Server Error response.
HTTP 200: The request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only.
HTTP 520: Cloudflare-specific. The origin server returned an unexpected response that Cloudflare could not process.
You encounter 200 when the most common HTTP response — indicates the request was processed successfully.
You encounter 520 when when Cloudflare receives an empty, unknown, or malformed response from the origin.
언제 어떤 것을 사용할지
For 200 (OK): No fix needed. The request succeeded as expected. For 520 (Web Server Returned an Unknown Error): Check origin server logs. Ensure responses include proper headers. Verify SSL configuration.