HTTP

HTTP 206 Partial Content vs 416 Range Not Satisfiable

HTTP 206 (Partial Content) is a 2xx Success response, while 416 (Range Not Satisfiable) is a 4xx Client 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, 416 means that the server cannot serve the requested byte range. The Range header value is outside the resource's size.

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 cannot serve the requested byte range. The Range header value is outside the resource's size.

When You See It

When requesting a byte range beyond the file's actual size.

How to Fix

Check the Content-Range in the response for the actual file size and adjust your Range header.

Key Differences

1.

206 is a 2xx Success response, while 416 is a 4xx Client Error response.

2.

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.

3.

HTTP 416: The server cannot serve the requested byte range. The Range header value is outside the resource's size.

4.

You encounter 206 when during video streaming, large file downloads, or when resuming interrupted downloads.

5.

You encounter 416 when when requesting a byte range beyond the file's actual size.

When to Use Which

For 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 416 (Range Not Satisfiable): Check the Content-Range in the response for the actual file size and adjust your Range header.

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