anchor.diff:        'report.fluorinated-gas.service.gov.uk',
         'report.ozone-depleting-substances.service.gov.uk',
         'right-to-work.service.gov.uk',
  +      'schools-financial-benchmarking.service.gov.uk',
  +      'selfservice.payments.service.gov.uk',
         'signin.service.gov.uk',
         'sorn.service.gov.uk',
         'tax.service.gov.uk',
  
positive.code: 
      var linkedDomains = [
        'access.service.gov.uk',
        'apply-basic-criminal-record-check.service.gov.uk',
        'apply-for-eu-settled-status.homeoffice.gov.uk',
        'apply-for-innovation-funding.service.gov.uk',
        'apply-quota.fluorinated-gas.service.gov.uk',
        'apply-quota.ozone-depleting-substances.service.gov.uk',
        'check-mot.service.gov.uk',
        'civilservicejobs.service.gov.uk',
        'compare-school-performance.service.gov.uk',
        'create-energy-label.service.gov.uk',
        'dartford-crossing-charge.service.gov.uk',
        'design-system.service.gov.uk',
        'electronic-visa-waiver.service.gov.uk',
        'eu-settled-status-enquiries.service.gov.uk',
        'findapprenticeship.service.gov.uk',
        'flood-warning-information.service.gov.uk',
        'get-fishing-licence.service.gov.uk',
        'get-information-schools.service.gov.uk',
  
negative.code:       'teaching-vacancies.service.gov.uk',
        'vehicle-operator-licensing.service.gov.uk',
        'vehicleenquiry.service.gov.uk',
        'viewdrivingrecord.service.gov.uk',
        'visas-immigration.service.gov.uk',
        'your-defra-account.defra.gov.uk'
      ];
      GOVUK.analytics.addLinkedTrackerDomain(secondaryId, 'govuk', linkedDomains);
    } else {
  