Does Pagespeed Insights or any other page speed tool measure DOMcontentLoaded (DCM)??

I was reading up about page speed and found that DOMcontentLoaded (DCM) is one of the more important factors to take into account when determining how fast a website or webpage is. The only issue is that I can't seem to find anything on Pagespeed insights or GTmetrix when I do speed tests? Is there perhaps another name it goes by or is it just not included?