The FunnelEnvy snippet is required for most of the platform functionality. It collects data about visitors, communicates with the backend services and manages many of the browser side integrations.
The snippet is lightweight and intended to be loaded synchronously where possible. This minimizes "content flash" when activating onsite personalization campaigns (e.g. in Optimizely). Delivered through Amazon Web Services's Cloudfront CDN it has minimal impact on site performance and will scale to very heavy load.
In some circumstances it is possible to load the snippet asynchronously (via a Tag Management Solution) for example when only being used for integration with retargeting platforms or analytics.
Locating your snippet
Snippet Implementation Notes
Optimizely customers - Although the FunnelEnvy platform will activate conditionally executed experiments in Optimizely automatically, if you notice content flashing issues in your experiments you may want to try placing the snippet above the Optimizely snippet on the page