peopleinside.it - desktop site instead of mobile site

[PeopleInside]

URL: http://peopleinside.it

Browser / Version: Edge 133.0.3065.82 (Build ufficiale) (64 bit)
Operating System: Windows 11
Tested Another Browser: Yes Firefox

Problem type: Desktop site instead of mobile site
Description: Desktop site instead of mobile site
Steps to Reproduce:
On Edge and Chrome if I open http://peopleinside.it I see the browser alert me the connection are not secure.
On my test all seems fine and I don't have the same issue with Firefox. I'm unable to understand why this happen

View the screenshot

Browser Configuration

• None

From webcompat.com with ❤️

[PeopleInside]

I don't know why this happen but i change settings in the Plesk server to redirect from domain.ext to www.domain.ext and this seems resolve the issue in Chrome. The strange thing is for me all was configured correctly and no issues on Firefox.