I am currently developing a site that should not expose its magento developer platform (sorry for that).
I thought that wappalyzer (Mozila addon), the GTmetrix website finds cms names in its html format, but when I saw a blank white page with these tools, it still shows me how I use Magento (there is nothing in the original view - its white page), so now how do they find me to use magento. Any idea of โโthe work they work? I checked the headers, but there was nothing particularly mentioned as magento. The same thing happens with wordpress / joomla - just wappalyzer (Mozila addon), GTmetrix finds the site platform, thereโs not even an html source.
So, I think there is something with a heading (maybe something is missing) or what could it be? Please advise. Attached screenshot. 
Thanks in advance
Elamurugan
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