Last night iGuRu.gr moved to a European server. Moving and upgrading PHP to 7 from 5.x will bring changes to the site's speed.
These changes will make the site faster, but do not expect miracles, as we have already finished it.
We also repaired the site's headers for more security. Once again we finished it also grabbing the ceiling.
The difficulty in the result you see below in the Security Headers of iGuRu.gr is that in addition to the internal javascipts and css functions, external scripts, such as those that are not hosted on the site, such as analytics.js, should work.
We have been delaying the addition of Secure Headers for a while because it slows some of the speed of the site.
But with the transfer to a European server and the upgrading of PHP, we decided to add the headers after we got the speed with the changes.
So you will not notice much difference in speed, and if at some point the page takes a few tenths of a second above, the next automatic cache drop speeds up.