Listing Optimization

Hi,

So I am trying to optimize my listing. When I use Cerebro and analyze a competitor listing it gives me a big number of keywords for example 5000 keywords. When I run my listing it shows like 200 keywords. My question is how is it possible to fit 5000 keywords in a listing? Where are these keywords supposed to go as their listing looks the same size as mine??

Any advice regarding listing optimization in general is also appreciated 🙂