Verified apps/integrations are packaged with NuGet, have associated documentation, and comply with Optimizely security, user interface, and integration standards. They are generally apps or integrations that are integrated into the code of an Optimizely website.
Certified integrations use Optimizely’s publicly available API’s or place JavaScript on a site. They do not directly integrate into the code of a website. These integrations are certified by showing an integrated solution through a demonstration capability. There is a design review done by the integrations team to ensure certification.