Hi Luis,
If I understand you correctly you would like to find what keywords your competitors are targeting simply by naming them?
See George's response.. here are some tips.
- Read their Title Tag, most optimized sites will have their keywords in the title tag
- Read their keywords tag, older sites may still have keywords tag, if so they are basically telling you what they are targeting, careful though this can also be used as a red herring to throw off snoopers.
- Read their H1-H4 tags, this is the optimal place to put keywords
- Use a Keyword Density tool, a keyword appearing more then the rest, is likely the one(s) being targeted
- Finally, do keyword research for your own site, the keywords that make sense for you to use, probably also make sense for your competitors to use. Once you have your keyword list just run them to see where your competitors are ranking.
Hope this was helpful
