We typically find that relying just on Optimizely, VWO or Convert.com's A/B test tracking has hidden costs:
- Restrictive analytics capabilities
- Worse site performance
- Increases your compliance obligations & compromises your data sovereignty
In our experience Analytics tools like GA and Snowplow are more trustworthy and full-featured. And, at Mint Metrics, all experiments get tracked into both GA & Snowplow for clients. We no longer use or trust SaaS testing tools' built-in trackers.
Here's how purpose-built analytics tools lifts your split testing game...