Browser fingerprint lab
User-Agent parser
Send any User-Agent string to the server (ua-parser-js) and see what it is recognised as. Prefilled with your current UA.
User-Agent
Result
What this means
The UA string is the first thing websites use to identify browser and OS, and the easiest thing to change. The parsed result only reflects what the string claims, not the real environment; judge authenticity with the checks above.