We have the best tools for the job.
Most agencies will use a split testing tool like VWO or Optimizely to run split tests for your campaign.
To combat this we’ve developed our own integrations utilising Google Analytics and Tag Manager to record more reliable results. Using data from both a split testing tool and Google Analytics allows us to compare results and ensure that they are reliable.
For most businesses, Google Analytics is their one true voice for web data, so it makes complete sense to use the same platform to test any potential changes and track any outcomes.