HTTP 206 Partial Content vs 506 Variant Also Negotiates
HTTP 206 (Partial Content) is a 2xx Success response, while 506 (Variant Also Negotiates) 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, 506 means that the server has an internal configuration error: the chosen variant resource is configured to engage in content negotiation itself.
Description
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.
When You See It
During video streaming, large file downloads, or when resuming interrupted downloads.
How to Fix
No fix needed. This is normal behavior for range requests.
Description
The server has an internal configuration error: the chosen variant resource is configured to engage in content negotiation itself.
When You See It
Rare. Indicates a misconfigured server-side content negotiation loop.
How to Fix
Fix the server's content negotiation configuration.
Key Differences
206 is a 2xx Success response, while 506 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 506: The server has an internal configuration error: the chosen variant resource is configured to engage in content negotiation itself.
You encounter 206 when during video streaming, large file downloads, or when resuming interrupted downloads.
You encounter 506 when rare. Indicates a misconfigured server-side content negotiation loop.
When to Use Which
For 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 506 (Variant Also Negotiates): Fix the server's content negotiation configuration.