In the comment below he said he could successfuly filter it by just blocking all what contains "Bytespider" (and indeed in my case I filter it with just that part).

In case of IMCDb, as long as it identifies as something specific, it is easy to filter or block, I just put the filter in the start of the file that is included in every page of the site.
But in general I prefer not to block completely all these, otherwise they may end up trying to get around via another name that we have to find again and block again