HEAD Bucket

Indicates if a bucket exists and whether the requester has READ access to it.

If you make a HEAD request that's scoped to a bucket that doesn't exist, you will get a 404 Not Found status code and the body of the error response will contain NoSuchBucket in the Code element.

Query string parameters

This request does not typically include query string parameters.

See signed URL query string parameters for information on the parameters you include when creating and using signed URLs.

Request headers

Header Description Required
Authorization The authentication string for the request. Yes

The length of the request body without headers (in bytes).

Date The date and time of the request. No
Host The URI for Cloud Storage. For more information, see Request Endpoints. Yes
x-goog-user-project The project to be billed for charges associated with the request. No

Request body elements

This request does not include an XML document in the request body.

Request syntax

Host: BUCKET_NAME.storage.googleapis.com
Date: DATE
Content-Length: 0

Response headers

The request returns standard response headers.

Response body elements

The response does not include an XML document in the response body. Error responses to HEAD requests also do not contain a response body.


The following sample shows a HEAD request for a bucket named travel-maps.


Host: travel-maps.storage.googleapis.com
Authorization: Bearer ya29.AHES6ZRVmB7fkLtd1XTmq6mo0S1wqZZi3-Lh_s-6Uw7p8vtgSwg


HTTP/1.1 200 OK