For the server web1.hosting1976.fr in proxy nginx
After observing the logs a few weeks, despite refining the settings to make the cache refresh as best as possible, it seems that using pagespeed an proxy mode with nginx is not optimal.
In fact, there are a lot of errors generated that revolve around the fact that pagespeed do not communicate well with Apache.
Also, this generates a large number of support tickets, in the sense that many do not wish to wait a certain time to see things updated.
Apparently to integrate it to the Apache level directly seems the solution in the server config, and there is a setting that allows to refresh the pagepeed cache immediately if the source has changed ... We must experiment all this sr one server test, because it is not all cooked as config ...
For now, we disable it at the user account level, which means that the module is always active, and that it is enough to activate it by cPanel to use it.