What Cookies Does Nelio A/B Testing Set?
Nelio A/B Testing uses cookies to make sure visitors see the correct variant consistently and to ensure accurate tracking of page views and conversions. These cookies do not store personally identifiable information and are used solely to maintain proper testing behavior.
Cookies fall into two categories: essential cookies (required for the plugin to function) and analytics cookies (used to measure visits and conversions).
Essential cookies
These cookies ensure each visitor sees the same variant across sessions and help determine whether they should be included in segmented tests. They contain only the data strictly necessary for proper A/B test functionality.
| Cookie | Purpose | Lifetime |
|---|---|---|
nabAlternative | Stores the variant assigned to the visitor so the same version is shown consistently. | 4 months |
nabSegmentation | Stores segmentation information (e.g., device type, geolocation category) so Nelio knows whether the visitor matches the test’s targeting rules. | 4 months |
nabCheckWritePermission | Temporary cookie to check if cookies can be written and read. | Few seconds |
These cookies do not track behavior or identify the visitor.
Analytics Cookies
These cookies help Nelio accurately measure page views and conversions for running tests. They store aggregated, anonymized data only.
| Cookie | Purpose | Lifetime |
|---|---|---|
nabExperimentsWithPageViews | Tracks which tests the visitor has viewed so conversions for those tests can be recorded. | 4 months |
nabUniqueViews | Helps track unique visits and conversions (avoiding multiple counts for the same visitor). | 4 months |
nabSimulateStaging | Makes the site behave like a staging site (no data sent to the cloud; events logged in console). | Session |
nabIsUserLoggedIn | Indicates whether the visitor is logged in (used to exclude admins/editors from tests). | Session |
nabSessionChecksum | Stores a session checksum to ensure WooCommerce session data includes the list of tests the visitor has already seen. | Session |
These cookies cannot identify visitors individually. All data is aggregated and used solely to improve test accuracy and site performance.
Deprecated Cookies (Used Prior to Version 7.0)
Older versions of Nelio A/B Testing used additional cookies, which are no longer active in current releases:
| Cookie | Purpose |
|---|---|
nabIsVisitorExcluded | Marked visitors who should not participate (e.g., logged-in admins). |
nabParticipation | Stored whether a visitor should participate in tests. |
nabIsStagingSite | Marked a site as staging and prevented event synchronization. |
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