Ohh great. I have head this tagging mechanism in my head this night as a solution. Thought (is that the right past form of think?) that this would be a great overkill for that simple classes, but as you propose it now i will do it :+1: 

Befor i start i would ask @WouterJ if there is a naming strategy to create tags? My suggest would be: `cmf_seo.strategy`, ok?