Cookie Policy

Website owner and contact information

This website is run and owned by:
21Optical ApS – CVR 36 89 38 42

What is a cookie?

A cookie is a small data file that we store on your computer in order to keep track of what happens during your visit, and to recognize the computer. A cookie is not a program and does not contain viruses.

The website’s use of cookies

Cookies are necessary to make the website work. Cookies also help us gain an overview of your visit on the website so that we can continually optimize and target the website to your needs and interests. For example, cookies may remember if you have been logged in, what you have added to the shopping cart, if you have previously visited the site, etc. Here is the overview of the website’s use of cookies and our partners in this regard:

Necessary cookies

These cookies are required in order for the website to provide a service that the end user has explicitly requested. This could, for example, cookies used to make a shopping cart work. The content of the website is stored and managed through a CMS platform. It adds cookies that are used to recognize you when you browse the site and remembers if you are logged in and the contents of your shopping cart.

Preference cookies

These cookies are used to ensure an optimal user experience on the website. For example, selected preferences such as language or selections, making the site easier to navigate. No personally identifiable data is collected with this type of cookies.

Operating and optimization cookies

These cookies are used for the operation of the website. This could, for example, be counting the amount of visitors or other information to be used for analysis. They are also used in connection with surveys. These cookies can, to a limited extent, collect data that can be attributed to the individual user.

Marketing – anonymous tracking across websites

These cookies are used to follow users across their visits to different websites. These cookies can be used to create profiles that show which searches each user has made, or which pages they have visited. These cookies can store data that identifies the individual user, or contains specific information about the user. Anonymous data may be shared with third parties.

How to reject or delete your cookies

Reject cookies

You can always reject cookies on your computer, by changing your browser settings. Where you will find these settings depends on which browser you are using. However, note that if you do, there are a lot of features and services that you will not be able to use, as they require that the website is able to remember the choices you make.

Deleting cookies

Cookies that you have previously accepted can be easily deleted. If you are using a PC with a modern browser, you will be able to delete your cookies by using the shortcut keys: CTRL + SHIFT + Delete. If the shortcut keys are not working, or if you are using a MAC, you first need to figure out which browser you are using and then click on the relevant link:

Questions and complaints

Do you have any questions? If you have any comments or questions regarding our information and/or processing og personal information, please feel free to get in touch at

How to file a complaint about the websites information on cookies

Complaints must be sent in writing to and should at least contain the following information:

  • Your name
  • Your address
  • Your email
  • Your phone number
  • The website’s www address
  • Detailed description of the content of the complaint

21Optical will then process your complaint within reasonable time.

tk_qs – – Gathers information from Automattic, first party analytics tool about how services are used. A collection of internal metrics for user activity, used to improve their user experience. – Expired: Session

tk_ai – – Stores a randomly-generated anonymous ID for Jetpack. This is only used within the admin area and is used for general analytics tracking. Expired: Session

tk_r3d – – Referral cookies used to analyse referrer behavior for Jetpack connected sites using WooCommerce. – Expired: 72 hours

tk_or – – Collection of Jetpack internal metrics for user activity, used to improve user experience – Expires: 5 years

tk_lr – – Collection of Jetpack internal metrics for user activity, used to improve user experience – Expires: 12 months

wp_woocommerce_session_ – – Contains a unique code for each customer so that it knows where to find the cart data in the database for each customer. – Expired: 2 days

woocommerce_cart_hash – – Helps WooCommerce determine when cart contents/data changes. – Expired: Session

woocommerce_items_in_cart – – Helps WooCommerce determine when cart contents/data changes.- Expired: Session

wordpress_logged_in_ – – Indicates the user is logged in for interface use. – Expired: Session

yith_wcwl_session_ – – Help remember your favourite items by pressing on the heart and store in the Wishlist page. – 30 days

wordpress_sec_ – – Controls WordPress access – Expired: 15 days

eucookielaw – – Remembers the state of visitor acceptance to the use of cookies. – Expires: 180 days

_ga – – Google Analytics – Used to distinguish users – 2 years