Siteimprove offers the possibility of using regular expressions (or "regex") to create Policies. Currently, we offer regular expressions for the "Content" and "HTML" match types in Content Policies.
Regular expressions can only be set-up by Siteimprove's Support. To create regular expressions for a Policy, please submit a support ticket with the information you want to match.
Note: You need to have Advanced Technical Setup as part of your support package. Advanced Technical Setup is part of the Premium and Elite support packages.
A screenshot showing which Policy rules can use regular expressions