Cookies are small text files that web servers send to a computer. Typically they contain the name of the website and a unique identifier. When you request a page from the server, your browser sends the cookie back to the server.
I am not placing cookies. I do not track visitor information. I am not measuring the performance of features on this site and I have no plans to add cookies in the future.
If I were to use cookies, the would provide analytics that would give me anonymised information about, for example, how many people visit my website, which browsers they use, which pages are most popular, and whether the visitors are on laptops or a phones. As I said though, I am not placing or using cookies of any kind.