Tracking & data storage on optica.org

ID used to identify users

ID used to identify users

ID used to identify users and sessions

Used only with old Urchin versions of Google Analytics and not with GA.js. Was used to distinguish between new sessions and visits at the end of a session.

Contains information about the traffic source or campaign that directed user to the website. The cookie is set when the GA.js javascript is loaded and updated when data is sent to the Google Anaytics server

Used to monitor number of Google Analytics server requests

Used to distinguish new sessions and visits. This cookie is set when the GA.js javascript library is loaded and there is no existing __utmb cookie. The cookie is updated every time data is sent to the Google Analytics server.

This cookie is set by the load balancers and allows us to evenly balance the number of users across the web servers that we use.

Used by Google to prevent fraudulent login attempts. This also contains a Google user ID which can be used for statistics and marketing purposes following a successful login

Used to store guest consent to the use of cookies for non-essential purposes

ID of the proof of consent storage within the Consent Studio platform.

Local storage for the consent given by the user for certain categories of cookies.

Boolean that keeps track of whether the user has seen the cookie banner at least once.

When a website has implicit consent configured, this cookie stores whether or not it has been triggered or not.

Necessary for the antiscraping feature of the web application firewall.

Necessary for the antiscraping feature of the web application firewall.

Necessary for the antiscraping feature of the web application firewall.

Necessary for the antiscraping feature of the web application firewall.

Necessary for the antiscraping feature of the web application firewall.

Load balancer cookie

Used by LinkedIn to track the use of embedded services.

Used by the social networking service, LinkedIn, for tracking the use of embedded services.

The StackAdapt sa-user-id cookie is a third-party marketing cookie set by StackAdapt to track users across different websites, creating a unique visitor ID for the purpose of delivering personalized and relevant advertisements based on a user's browsing activity and interests.

The StackAdapt cookie sa-user-id-v2 is a persistent, marketing-focused cookie used by the StackAdapt platform to record a unique visitor ID and track user activity across different websites. Its purpose is to enable StackAdapt to provide personalized advertisements and content to users based on their browsing preferences and to monitor the effectiveness of advertising campaigns.

The StackAdapt sa-user-id-v3 cookie is a third-party marketing cookie set by StackAdapt to uniquely identify users across different websites, allowing them to deliver personalized and relevant advertisements. This persistent cookie stores a random identifier to track your browsing behavior, such as the pages you visit, to build a profile of your interests for targeting ads on other sites.

Used by Google AdSense for experimenting with advertisement efficiency across websites using their services.

This cookie is used for targeting, analyzing and optimisation of ad campaigns in DoubleClick/Google Marketing Suite

This cookie is set by Reddit and is used for remarketing on reddit.com.

Used by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers

Used to determine what type of devices (smartphones, tablets, computers, TVs etc.) is used by a user.

Used to determine what type of devices (smartphones, tablets, computers, TVs etc.) is used by a user.

Collects data related to 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 displaying targeted ads.

Used for data-synchronization with advertisement networks

Collects information on user behavior on multiple websites. This information is used in order to optimize the relevance of advertisement on the website.

Collects data related to 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 displaying targeted ads.