microsoftedgeinsider.com could appear to some casual users to be a phishing site.

[Quadrapod]

This is in response to my wife's concern over the domain.  Microsoft is often the target of phishing attacks.  It's not at all uncommon for scammers to attempt to claim to be acting on the behalf of microsoft.  The majority of Microsoft associated sites include the Microsoft.com domain name to alleviate that risk.   Now the certificate makes it less worrying, but her first response was to assume it was a phishing site.  I'm not necessarily raising this issue with the expectation that something will be done, but just to make people aware that it could be a concern. 

[#2]

Thank you for taking the time to reach out to us on this, @Quadrapod.  We are aware that our site name sort of fits with a phishing site.  We were trying not to disrupt or confuse users of our current Microsoft Edge browser in Windows 10 by changing the current https://www.microsoft.com/en-us/windows/microsoft-edge website.  We are hoping that the fact that it is signed will quiet any fears that our users have.