 Websites hosted on S3 may designate a default page to display and another page to display in the event of a partially invalid URL, such as a 404 error, which provide useful content to visitors of a URL containing a CNAME record hostname rather than a direct Amazon S3 bucket reference when the URL does not contain a valid S3 object key, such as when a casual user initially visits a URL that is a bare non-Amazon hostname.Amazon S3 allows users to enable or disable logging.If enabled, the logs are stored in Amazon S3 buckets which can then be analyzed.