url() validation gives me valid url

Why that link gives me invalid URL?

Forms\Components\TextInput::make('link')
    ->url()
    ->prefixIcon('heroicon-m-globe-alt'),

Forms\Components\TextInput::make('link')
    ->url()
    ->prefixIcon('heroicon-m-globe-alt'),

Forms\Components\TextInput::make('link')
    ->url()
    ->prefixIcon('heroicon-m-globe-alt'),

Forms\Components\TextInput::make('link')
    ->url()
    ->prefixIcon('heroicon-m-globe-alt'),