This page details the compliance checks that have yet to be implemented in the CF Checker and also those checks which it is impossible or very complex to implement.
To Do
7.3 Cell Methods
Recommendation - If a data variable has any dimensions or scalar coordinate variables referring to horizontal, vertical or time dimensions, it should have a cell_methods attribute with an entry for each of these spatiotemporal dimensions or scalar coordinate variables. (The horizontal dimensions may be covered by an area entry.)
Items not checked