a) What is the difference between cookie and trackers?
b) Why does Custom Clean erase all cookies and does not mention trackers but Health Check rarely clears more than a small percentage of trackers and does not mention cookies?
a) What is the difference between cookie and trackers?
b) Why does Custom Clean erase all cookies and does not mention trackers but Health Check rarely clears more than a small percentage of trackers and does not mention cookies?
They are (mostly) the same things being found, it's just simplified wording used in Health Check.
Health Check calls all cookies, temporary internet files, download history, etc. 'Trackers', - Custom Clean calls them by their individual names.
Custom Clean is meant for more advanced users.
See these links for more information:
https://community.ccleaner.com/topic/52668-tracking-files/?tab=comments#comment-300043
PS. When I said "mostly" above, that is because Health Check uses it's own cleaning rules that you cannot change.
Custom Clean on the other hand allows you more control to specify what is and isn't cleaned.
You can also use an 'ini' file, (winapp2.ini), to vastly increase the standard range of what CCleaner will clean with Custom Clean.