Assistive technologies, such as screen readers, will not be able to render ``++<object>++`` elements, in such cases it is the content of the ``++<object>++`` which is provided to the user. This alternative content needs to be accessible or the screen readers won't be able to use it. For example, if an ``++<img>++`` is used it must contain an ``++alt++`` attribute (see corresponding rule Web:ImgWithoutAltCheck).
This rule raises an issue when an ``++<object>++`` tag does not have any alternative content.