HTTP 207 Multi-Status vs 521 Web Server Is Down
HTTP 207 (Multi-Status) is a 2xx Success response, while 521 (Web Server Is Down) is a 5xx Server Error response. 207 indicates that the response body contains status information for multiple resources, in situations where multiple status codes might be appropriate (WebDAV). In contrast, 521 means that cloudflare-specific. The origin server refused the connection.
Descrição
The response body contains status information for multiple resources, in situations where multiple status codes might be appropriate (WebDAV).
Quando você o vê
In WebDAV operations that affect multiple resources simultaneously.
Como corrigir
Parse the XML body to check the status of each individual resource.
Descrição
Cloudflare-specific. The origin server refused the connection.
Quando você o vê
When Cloudflare can't establish a TCP connection to the origin server.
Como corrigir
Check that the origin server is running and the firewall allows Cloudflare IPs.
Diferenças principais
207 is a 2xx Success response, while 521 is a 5xx Server Error response.
HTTP 207: The response body contains status information for multiple resources, in situations where multiple status codes might be appropriate (WebDAV).
HTTP 521: Cloudflare-specific. The origin server refused the connection.
You encounter 207 when in WebDAV operations that affect multiple resources simultaneously.
You encounter 521 when when Cloudflare can't establish a TCP connection to the origin server.
Quando usar qual
For 207 (Multi-Status): Parse the XML body to check the status of each individual resource. For 521 (Web Server Is Down): Check that the origin server is running and the firewall allows Cloudflare IPs.