Which type of website is designed specifically for mobile devices with a distinct code base?

A mobile website is specifically designed for mobile devices and features a distinct code base tailored to deliver an optimized user experience on smaller screens. This design approach often involves different layouts, functionalities, and interactions that cater to the needs and behaviors of mobile users. Such websites load specifically designed pages when accessed via a mobile device, ensuring that content is presented effectively in a format that is easy to navigate, with touch-friendly controls and quicker loading times.

In contrast, responsive websites adjust their layout and content dynamically depending on the device's screen size but generally share the same code base with the desktop version. Desktop websites are meant for larger screens and do not cater specifically to mobile users. Progressive Web Apps, while providing a native app-like experience and functioning across devices, still differ from traditional mobile websites as they leverage the capabilities of both web and mobile technologies to deliver enhanced features and performance.