The web statistics, disk, and traffic usage data are calculated for every 24 hours in Plesk. The statistics can be updated automatically or can be generated manually by using the command line utility statistics. This utility is useful for generating the statistics for an individual domain or for a whole server. This utility can be run with the plesk sbin command. The following command is used to generate web statistics for a particular domain example.com,
plesk sbin statistics --generate-domain-webstat --domain-name=example.com