WebDataCentre.com has a bad bot which does not obey robots.txt file telling them to stay off our web sites. The user agent looks like this:
Mozilla/5.0 (compatible; WebDataCentreBot/1.0; +http://WebDataCentre.com/)
The network is an old favorite which seems to be full of suspiciousness:
OrgName: SoftLayer Technologies Inc.
Address: 1950 N Stemmons Freeway
NetRange: 18.104.22.168 - 22.214.171.124