Cookie database

Visual Website Optimizer cookies

9 cookies set by Visual Website Optimizer, each with its purpose and consent category.

Privacy policy: https://vwo.com/privacy-policy/

CookieCategoryPurpose
_vis_opt_exp_FunctionalThis cookie is generated when a goal is created.
_vis_opt_sFunctionalThis cookie detects if you are new or returning to a particular test.
_vis_opt_test_cookieFunctionalThis is a temporary session cookie generated to detect if the cookies are enabled on the user browser or not.
_vwo_dsAnalyticsCollects 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_referrerAnalyticsRegisters data on visitors' website-behaviour. This is used for internal analysis and website optimization.
_vwo_snAnalyticsCollects 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_ssmFunctionalThis 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_uuidFunctionalUsed to track visitor movements anonymously.
_vwo_uuid_v2FunctionalUsed 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.