Can't decrypt Yandex url?

Question

Search Engine Optimization

Please tell me how to decipher what parameters in the search results.
Example - I type in Yandex "buy a TV", I click to copy the link address, I get:
www.yandex.ru/clck/jsredir?bu=8eyf&from=www.yandex...
It is clear that all values ​​​​are encrypted (can't they be decrypted?) , but I’m interested in which field the site address is sewn in, in which request, I didn’t find information anywhere. An example of parameters is state=, ref=, &keyno=
what do they mean ?

Answer 1

eh, Serzhik,
in the Yandex database they are all protected, in the Yandex database
and in the URL - just a session