It seems specific to your site. I think it is caused by the Gantry template.
Email Protector checks to see if the Joomla core JFactory::getDocument()->getBuffer('component') command returns anything.
If not, it won't add the scripts.
It seems the homepage in your template is for some reason not returning any component.
Can you reproduce the issue with the Joomla core template?
Hm, yep, I had the same assumption and had already deactivated Joomla system cache and JotCache, still RegLab's cache cleaner seems deleting 1.something kb caches, I have no idea where they come from.
And while using Fiefox Webdeveloper the changes made in style css-file do not happen when reloading the page. Do you have any idea? My websites - with the same styles and scripts running - are mostly hosted at all-inkl.com, this one at ionos.de. Can this be the reason?
No, it's deactivated, too. And meanwhile I found out that Strato's "PHP Boost" causes caching - that's why I deactivated it now, too. I don't know when this will be effective for the website, but caching is now completely off - let's hope to get the problem solved by now.