Common response headers

    Apart from standard HTTP headers, Yandex Object Storage uses additional headers that can be present in responses.

    The table below describes additional headers as well as standard headers that need to be explained in more detail.

    Header name Description
    ETag Object hash.

    Does not include object metadata.
    x-amz-id-2 Special ID that is used with the x-amz-request-id header when solving problems with Object Storage.
    x-amz-request-id Unique request ID.

    You may need it when contacting the Yandex.Cloud support service if any problems occur.

    If a request is sent with CORS headers, a response may contain the headers of a response to the OPTIONS preflight request.