HTTP 400 Bad Request vs 410 Gone
Both HTTP 400 (Bad Request) and 410 (Gone) belong to the 4xx Client Error category. 400 indicates that the server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing. Meanwhile, 410 means that the resource is permanently gone and will not be available again. Unlike 404, this is intentional and permanent.
Description
The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
When You See It
When sending malformed JSON, missing required fields, or invalid query parameters.
How to Fix
Check the request body format, validate all required fields, and ensure proper encoding.
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
HTTP 400: The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
HTTP 410: The resource is permanently gone and will not be available again. Unlike 404, this is intentional and permanent.
You encounter 400 when when sending malformed JSON, missing required fields, or invalid query parameters.
You encounter 410 when when a resource has been deliberately removed and should be de-indexed by search engines.
When to Use Which
For 400 (Bad Request): Check the request body format, validate all required fields, and ensure proper encoding. For 410 (Gone): Remove references to this URL. Search engines will de-index the page.