If you do not use a cache plugin, only the browser cache should be cleared. Here is an article for the Chrome browser – https://support.google.com/accounts/answer/32050?co=GENIE.Platform%3DDesktop&hl=en&oco=1
On your site, I do not see any problem with the header type http://prntscr.com/jqzqiv + http://prntscr.com/jqzqnl = http://prntscr.com/jqzqq2
Regards