HTTP 206 Partial Content

In short: The server delivers only part of the file, as requested in the Range header.

In more detail: With Range: bytes=0-1023 the client asks for a section and the server answers 206 with Content-Range. This allows downloads to resume and video players to jump to any position.

In Depth

When it occurs

• Video and audio streaming, seeking in a film.
• Interrupted downloads are resumed.

What you can do

1. As a user there is nothing to do.
2. Operators: send Accept-Ranges: bytes if partial requests should be possible (videos, large files).

See also: HTTP Status Codes Overview, HTTP