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These cookies are necessary for the Thorlabs website to function. They are set to never expire and will live in your browser long term.

• cfid/cftoken/jsessionID – These cookies are used to maintain a user’s session across our website.
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Performance

• newproductlastvisit – This cookie keeps a date of your last visit so that we can populate our new products page with the newest items since your previous visit. This cookie lives inside your browser for one year and is set and maintained by Thorlabs. This information is not shared with any other 3rd parties or services and is strictly for user experience.

Third-Party

• Azure/Microsoft- tracking for app insights Azure's third-party cookies allow Thorlabs to track data from the user to improve the experience for our customers. The session cookie ai_session, has a duration of thirty minutes. The ai_user cookie has a duration of one year. These cookies are set and maintained by Microsoft.
• Live/LivePerson/Live Person (Conversational Cloud) uses information stored in cookies to maintain session data and to identify returning visitors by saving Conversational Cloud-specific data such as visitor ID and last chat date. It is important to note that the cookies do not contain any private customer data or any data that can be accessible or useful outside of Conversational Cloud. The session cookie lpsid has a storage duration of 30 minutes and the cookie Ipvid has a duration of one year. These cookies are set and maintained by Live Person.