Bucket Naming Rules
    • 14 Feb 2025
    • 1 Minute to read
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    Bucket Naming Rules

    • PDF

    Article summary

    What are the general-purpose bucket naming rules?

    The following naming rules apply to general-purpose buckets.

    • Bucket names must be between 3 (min) and 63 (max) characters long.
    • Bucket names can consist only of lowercase letters, numbers, periods (.), and hyphens (-).
    • Bucket names must begin and end with a letter or number.
    • Bucket names must not contain two adjacent periods.
    • Bucket names must not be formatted as an IP address (for example, 192.168.5.4).
    • Bucket names must not start with the prefix xn--.
    • Bucket names must not start with the prefix sthree-.
    • Bucket names must not start with the prefix amzn-s3-demo-.
    • Bucket names must not end with the suffix -s3alias.
    • Bucket names must not end with the suffix --ol-s3.
    • Bucket names must not end with the suffix .mrap.
    • Bucket names must not end with the suffix --x-s3.

    Recommendations for naming a bucket


    • Choose a bucket naming scheme that's unlikely to cause naming conflicts
    • Append globally unique identifiers (GUIDs) to bucket names
    • Avoid using periods (.) in bucket names
    • Don't delete buckets so that you can reuse bucket names
    • After you delete a bucket, be aware that another Wasabi account in the same partition can use the same bucket name for a new bucket and potentially receive requests intended for the deleted bucket.