Tutorial Set Expires
Setting "expires" tells browsers downloading these files that they don't need to request it again for this specific length of ...
https://iskablogs.blogspot.com/2014/03/tutorial-set-expires.html
Setting "expires" tells browsers downloading these files that they don't need to request it again for this specific length of time. In otherwords, use the cache instead if you have it. This can reduce stress on the server for you, and speed up page load time for visitors.
# BEGIN EXPIRES
ExpiresActive On
ExpiresDefault "access plus 10 days"
ExpiresByType
# BEGIN EXPIRES
ExpiresActive On
ExpiresDefault "access plus 10 days"
ExpiresByType
