Optika Strnad s.r.o.

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They help track the number of visitors and also the source of the traffic, which allows us to improve the performance of the site. With them, we can determine which sites are the most popular and which are not popular, and we can also track how visitors navigate the site. All information that cookies collect is aggregated and anonymous. If you do not enable cookies, we will not know when you visited our site.

These cookies can be set on our site by advertising partners. They can use them to profile your interests and show you ads on other sites. However, they do not store your personal information directly, but through the unique identifiers of the browser and Internet device. If you don't enable them, you'll see less targeted promotion on your site.