[doerig]

There is https://www.wappalyzer.com/ which does most of what you are looking for.

[gitgud]

I use the wappalyzer chrome extension almost everyday when I'm browsing the web, pretty useful at getting a highlevel view of the tech used

[Hackbraten]

Thanks! That’s exactly what I was looking for. It’s even local (data stays in the browser) and free software.