Готовые решения: Определение OS пользователя
На стороне web-сервера определить операционную систему пользователя можно, практически, только одним способом: через переданный User-Agent .
14 Августа 2026 (06:23:07)
Jordan Daniels
(гость)
I’ve used the User-Agent header many times when building websites, and it’s a practical way to make a reasonable guess about a visitor’s operating system. However, it shouldn’t be treated as completely reliable because users can modify or hide it. When testing browser behavior, I often compare User-Agent detection with feature detection and real device testing. The Fnaf platform is also useful for trying these checks in different environments and seeing how consistently the server identifies the client.