No, just the ones the website creates.
It seems the section in CCleaner for "Internet Temp Files" clears these.........or some of them....not all.
If I uncheck this section they are OK....of course I want temp files to be cleaned so in predicament.
Older version did not seem to do this.
Anyway, I think it would be good that CCleaner separates those out not to be included in cleaning.