HTTP 203 Non-Authoritative Information vs 410 Gone
HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 410 (Gone) is a 4xx Client Error response. 203 indicates that the response payload has been modified by a transforming proxy from the origin server's 200 response. In contrast, 410 means that the resource is permanently gone and will not be available again. Unlike 404, this is intentional and permanent.
Description
The response payload has been modified by a transforming proxy from the origin server's 200 response.
When You See It
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
How to Fix
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Description
The resource is permanently gone and will not be available again. Unlike 404, this is intentional and permanent.
When You See It
When a resource has been deliberately removed and should be de-indexed by search engines.
How to Fix
Remove references to this URL. Search engines will de-index the page.
Key Differences
203 is a 2xx Success response, while 410 is a 4xx Client Error response.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
HTTP 410: The resource is permanently gone and will not be available again. Unlike 404, this is intentional and permanent.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 410 when when a resource has been deliberately removed and should be de-indexed by search engines.
When to Use Which
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 410 (Gone): Remove references to this URL. Search engines will de-index the page.