As you can see in the picture, I have not installed a caching plugin.
In the browser, both the current Firefox and the current Chrome, the changes in the frontend are unfortunately only visible to me hours later, even though I have also deactivated the caching of the browser developer level (F12) under network analysis.
EDIT: I have already cleared the browser cache (both Firefox and Chrome) many times with CTRL + Shift + Delete, but unfortunately pressing the F5 key does not help.
EDIT 2: I have now also added the IP and domain of the page to be edited to /etc/hosts and deactivated OPcache. (I didn’t even see the deactivation of the OPcache live via phpinfo(), I had to confirm with the server center and it was only several hours later that I was able to see it myself.)
So neither the browser nor the website itself should cache anything, or have I forgotten something?
Since I use the normal web space from All-Inkl.com, there is certainly no caching involved.