Metrics and analytics (8)

Metrics and analytics (8)

Last updated Sep 24, 2026 exposes analytics for requests, storage, and bandwidth usage across your buckets.

The metrics displayed for a bucket in the Cloudflare dashboard ↗︎ are queried from Cloudflare's GraphQL Analytics API. You can access the metrics programmatically via GraphQL or HTTP client.

Metrics

R2 has three datasets:

Dataset	GraphQL Dataset Name	Description
Operations	`r2OperationsAdaptiveGroups`	This dataset consists of the operations taken on a bucket within an account.
Storage	`r2StorageAdaptiveGroups`	This dataset consists of the storage of a bucket within an account.
Bandwidth	`r2BandwidthUsageAdaptiveGroups`	Dataset contains uploaded and downloaded bytes for buckets within an account.

Metrics can be queried for a maximum range of 31 days. These datasets require an accountTag filter with your Cloudflare account ID.

Querying buckets with jurisdiction restriction

In your account, you may have two buckets of the same name, one with a specified jurisdiction, and one without.

Therefore, if you want to query metrics about a bucket which has a specified jurisdiction, you must include the jurisdiction followed by an underscore before the bucket name. For example: eu_bucket-name. This ensures you query the correct bucket.

Operations dataset

Field	Description
actionType	The name of the operation performed.
actionStatus	The status of the operation. Can be `success`, `userError`, or `internalError`.
bucketName	The bucket this operation was performed on if applicable. For buckets with a jurisdiction specified, you must include the jurisdiction followed by an underscore before the bucket name. For example: `eu_your-bucket-name`
objectName	The object this operation was performed on if applicable.
responseStatusCode	The http status code returned by this operation.
datetime	The time of the request.

Storage dataset

Field	Description
bucketName	The bucket this storage value is for. For buckets with a jurisdiction specified, you must include the jurisdiction ↗︎ followed by an underscore before the bucket name. For example: `eu_your-bucket-name`
payloadSize	The size of the objects in the bucket.
metadataSize	The size of the metadata of the objects in the bucket.
objectCount	The number of objects in the bucket.
uploadCount	The number of pending multipart uploads in the bucket.
datetime	The time that this storage value represents.

Bandwidth dataset

The dataset excludes bandwidth transfers smaller than 100 KiB. This threshold applies to transfer size, not object size.

You can filter by the following fields:

Field	Description
`bucketName`	The R2 bucket identifier, including the jurisdiction prefix if applicable.
`date`	The transfer timestamp truncated to the start of the day.
`datetimeHour`	The transfer timestamp truncated to the start of the hour.
`datetimeFifteenMinutes`	The transfer timestamp rounded down to the nearest quarter hour.
`datetimeFiveMinutes`	The transfer timestamp truncated to the start of the five-minute interval.
`datetimeMinute`	The transfer timestamp truncated to the start of the minute.
`datetime`	The raw transfer timestamp.

The following fields can be summed:

Field	Description
`bytesDownload`	Downloaded bytes.
`bytesUpload`	Uploaded bytes.

View via the dashboard

Per-bucket analytics for R2 are available in the Cloudflare dashboard. To view current and historical metrics for a bucket:

In the Cloudflare dashboard, go to the R2 object storage page. Go to Overview ↗
Select your bucket.
Select the Metrics tab.

You can optionally select a time window to query. This defaults to the last 24 hours.

Query via the GraphQL API

You can programmatically query analytics for your R2 buckets via the GraphQL Analytics API. This API queries the same dataset as the Cloudflare dashboard, and supports GraphQL introspection.

Examples

Operations

To query the volume of each operation type on a bucket for a given time period you can run a query as such

query R2VolumeExample(
    $accountTag: string!
    $startDate: Time
    $endDate: Time
    $bucketName: string
) {
    viewer {
        accounts(filter: { accountTag: $accountTag }) {
            r2OperationsAdaptiveGroups(
                limit: 10000
                filter: {
                    datetime_geq: $startDate
                    datetime_leq: $endDate
                    bucketName: $bucketName
                }
            ) {
                sum {
                    requests
                }
                dimensions {
                    actionType
                }
            }
        }
    }
}

The bucketName field can be removed to get an account level overview of operations. The volume of operations can be broken down even further by adding more dimensions to the query.

Storage

To query the storage of a bucket over a given time period you can run a query as such.

query R2StorageExample(
    $accountTag: string!
    $startDate: Time
    $endDate: Time
    $bucketName: string
) {
    viewer {
        accounts(filter: { accountTag: $accountTag }) {
            r2StorageAdaptiveGroups(
                limit: 10000
                filter: {
                    datetime_geq: $startDate
                    datetime_leq: $endDate
                    bucketName: $bucketName
                }
                orderBy: [datetime_DESC]
            ) {
                max {
                    objectCount
                    uploadCount
                    payloadSize
                    metadataSize
                }
                dimensions {
                    datetime
                }
            }
        }
    }
}

Bandwidth

To query hourly uploads and downloads for a bucket. Results contain byte totals, not transfer rates, and excluded transfers smaller than 100 KiB.

query R2BandwidthExample(
    $accountTag: string!
    $startDate: Time!
    $endDate: Time!
    $bucketName: string!
) {
    viewer {
        accounts(filter: { accountTag: $accountTag }) {
            r2BandwidthUsageAdaptiveGroups(
                limit: 1000
                filter: {
                    datetime_geq: $startDate
                    datetime_lt: $endDate
                    bucketName: $bucketName
                }
                orderBy: [datetimeHour_ASC]
            ) {
                sum {
                    bytesUpload
                    bytesDownload
                }
                dimensions {
                    datetimeHour
                }
            }
        }
    }
}

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Documentation Index
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Metrics and analytics (8)

Metrics and analytics (8)

Metrics

Operations dataset

Storage dataset

Bandwidth dataset

View via the dashboard

Query via the GraphQL API

Examples

Operations

Storage

Bandwidth

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