I&#x27;m glad that at least you find the graphs obvious, as I have a bunch of questions.<p>What are security pros and cons of using or not using GCM?<p>And which browser uses which settings of these displayed by default? How can we interpret the percentages?<p>What are the percentages anyway? It&#x27;s hard to see them from all these graphs. Actually, I don&#x27;t care about the peak-hour times when I just need to know the percentages.<p>And in which time zone is the time scale at all?<p>Thanks in advance.