Privacy policy: https://vwo.com/privacy-policy/
| Cookie | Category | Purpose |
|---|---|---|
_vis_opt_exp_ | Functional | This cookie is generated when a goal is created. |
_vis_opt_s | Functional | This cookie detects if you are new or returning to a particular test. |
_vis_opt_test_cookie | Functional | This is a temporary session cookie generated to detect if the cookies are enabled on the user browser or not. |
_vwo_ds | Analytics | Collects data on the user's visits to the website, such as the number of visits, average time spent on the website and what pages have been loaded with the purpose of generating reports for optimising the website content. |
_vwo_referrer | Analytics | Registers data on visitors' website-behaviour. This is used for internal analysis and website optimization. |
_vwo_sn | Analytics | Collects statistics on the visitor's visits to the website, such as the number of visits, average time spent on the website and what pages have been read. |
_vwo_ssm | Functional | This cookie is used for testing and is created only on sites that use the HTTP protocol. This is used to check if VWO can create cookies on them, post which this cookie is deleted. |
_vwo_uuid | Functional | Used to track visitor movements anonymously. |
_vwo_uuid_v2 | Functional | Used to track visitor movements anonymously. |
Running Visual Website Optimizer on your site? A free Conzent scan shows which of these cookies are set before consent, and the banner blocks them until the visitor agrees.
Last updated 2026-09-27.